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[example] 格式化整理

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This commit is contained in:
Meco Man
2021-03-07 08:34:04 +08:00
parent ce86058201
commit 08af426f01
30 changed files with 1063 additions and 1063 deletions
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66
examples/libc/dirent.c
View File

@@ -11,46 +11,46 @@
#include <dirent.h>
int libc_dirent()
{
DIR * dirp;
long int save3 = 0;
long int cur;
int i = 0;
int result = 0;
struct dirent *dp;
DIR * dirp;
long int save3 = 0;
long int cur;
int i = 0;
int result = 0;
struct dirent *dp;
dirp = opendir("/");
for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp))
{
/* save position 3 (after fourth entry) */
if (i++ == 3)
save3 = telldir(dirp);
dirp = opendir("/");
for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp))
{
/* save position 3 (after fourth entry) */
if (i++ == 3)
save3 = telldir(dirp);
printf("%s\n", dp->d_name);
printf("%s\n", dp->d_name);
/* stop at 400 (just to make sure dirp->__offset and dirp->__size are
scrambled */
if (i == 400)
break;
}
/* stop at 400 (just to make sure dirp->__offset and dirp->__size are
scrambled */
if (i == 400)
break;
}
printf("going back past 4-th entry...\n");
printf("going back past 4-th entry...\n");
/* go back to saved entry */
seekdir(dirp, save3);
/* go back to saved entry */
seekdir(dirp, save3);
/* Check whether telldir equals to save3 now. */
cur = telldir(dirp);
if (cur != save3)
{
printf("seekdir (d, %ld); telldir (d) == %ld\n", save3, cur);
result = 1;
}
/* Check whether telldir equals to save3 now. */
cur = telldir(dirp);
if (cur != save3)
{
printf("seekdir (d, %ld); telldir (d) == %ld\n", save3, cur);
result = 1;
}
/* print remaining files (3-last) */
for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp))
printf("%s\n", dp->d_name);
/* print remaining files (3-last) */
for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp))
printf("%s\n", dp->d_name);
closedir(dirp);
return result;
closedir(dirp);
return result;
}
FINSH_FUNCTION_EXPORT(libc_dirent, dirent test for libc);

8
examples/libc/env.c
View File

@@ -10,9 +10,9 @@
int libc_env()
{
printf("PATH=%s\n", getenv("PATH"));
putenv("foo=bar");
printf("foo=%s\n", getenv("foo"));
return 0;
printf("PATH=%s\n", getenv("PATH"));
putenv("foo=bar");
printf("foo=%s\n", getenv("foo"));
return 0;
}
FINSH_FUNCTION_EXPORT(libc_env, get/set_env test);

34
examples/libc/ex1.c
View File

@@ -9,29 +9,29 @@
static void *process(void * arg)
{
int i;
printf("Starting process %s\n", (char *)arg);
for (i = 0; i < 10000; i++)
write(1, (char *) arg, 1);
return NULL;
int i;
printf("Starting process %s\n", (char *)arg);
for (i = 0; i < 10000; i++)
write(1, (char *) arg, 1);
return NULL;
}
#define sucfail(r) (r != 0 ? "failed" : "succeeded")
int libc_ex1(void)
{
int pret, ret = 0;
pthread_t th_a, th_b;
void *retval;
int pret, ret = 0;
pthread_t th_a, th_b;
void *retval;
ret += (pret = pthread_create(&th_a, NULL, process, (void *)"a"));
printf("create a %s %d\n", sucfail(pret), pret);
ret += (pret = pthread_create(&th_b, NULL, process, (void *)"b"));
printf("create b %s %d\n", sucfail(pret), pret);
ret += (pret = pthread_join(th_a, &retval));
printf("join a %s %d\n", sucfail(pret), pret);
ret += (pret = pthread_join(th_b, &retval));
printf("join b %s %d\n", sucfail(pret), pret);
return ret;
ret += (pret = pthread_create(&th_a, NULL, process, (void *)"a"));
printf("create a %s %d\n", sucfail(pret), pret);
ret += (pret = pthread_create(&th_b, NULL, process, (void *)"b"));
printf("create b %s %d\n", sucfail(pret), pret);
ret += (pret = pthread_join(th_a, &retval));
printf("join a %s %d\n", sucfail(pret), pret);
ret += (pret = pthread_join(th_b, &retval));
printf("join b %s %d\n", sucfail(pret), pret);
return ret;
}
#include <finsh.h>
FINSH_FUNCTION_EXPORT(libc_ex1, example 1 for libc);

38
examples/libc/ex6.c
View File

@@ -7,31 +7,31 @@
#define usleep rt_thread_sleep
static void *test_thread(void *v_param) {
return NULL;
return NULL;
}
int libc_ex6(void) {
unsigned long count;
unsigned long count;
setvbuf(stdout, NULL, _IONBF, 0);
setvbuf(stdout, NULL, _IONBF, 0);
for (count = 0; count < 2000; ++count) {
pthread_t thread;
int status;
for (count = 0; count < 2000; ++count) {
pthread_t thread;
int status;
status = pthread_create(&thread, NULL, test_thread, NULL);
if (status != 0) {
printf("status = %d, count = %lu: %s\n", status, count, strerror(
errno));
return 1;
} else {
printf("count = %lu\n", count);
}
/* pthread_detach (thread); */
pthread_join(thread, NULL);
usleep(10);
}
return 0;
status = pthread_create(&thread, NULL, test_thread, NULL);
if (status != 0) {
printf("status = %d, count = %lu: %s\n", status, count, strerror(
errno));
return 1;
} else {
printf("count = %lu\n", count);
}
/* pthread_detach (thread); */
pthread_join(thread, NULL);
usleep(10);
}
return 0;
}
#include <finsh.h>
FINSH_FUNCTION_EXPORT(libc_ex6, example 6 for libc);

120
examples/libc/ex7.c
View File

@@ -14,88 +14,88 @@
/* Our event variable using a condition variable contruct. */
typedef struct {
pthread_mutex_t mutex;
pthread_cond_t cond;
int flag;
pthread_mutex_t mutex;
pthread_cond_t cond;
int flag;
} event_t;
/* Global event to signal main thread the timeout of the child thread. */
event_t main_event;
static void *test_thread(void *ms_param) {
int status = 0;
event_t foo;
struct timespec time;
struct timeval now;
long ms = (long) ms_param;
int status = 0;
event_t foo;
struct timespec time;
struct timeval now;
long ms = (long) ms_param;
/* initialize cond var */
pthread_cond_init(&foo.cond, NULL);
pthread_mutex_init(&foo.mutex, NULL);
foo.flag = 0;
/* initialize cond var */
pthread_cond_init(&foo.cond, NULL);
pthread_mutex_init(&foo.mutex, NULL);
foo.flag = 0;
/* set the time out value */
printf("waiting %ld ms ...\n", ms);
gettimeofday(&now, NULL);
time.tv_sec = now.tv_sec + ms / 1000 + (now.tv_usec + (ms % 1000) * 1000)
/ 1000000;
time.tv_nsec = ((now.tv_usec + (ms % 1000) * 1000) % 1000000) * 1000;
/* set the time out value */
printf("waiting %ld ms ...\n", ms);
gettimeofday(&now, NULL);
time.tv_sec = now.tv_sec + ms / 1000 + (now.tv_usec + (ms % 1000) * 1000)
/ 1000000;
time.tv_nsec = ((now.tv_usec + (ms % 1000) * 1000) % 1000000) * 1000;
/* Just use this to test the time out. The cond var is never signaled. */
pthread_mutex_lock(&foo.mutex);
while (foo.flag == 0 && status != ETIMEDOUT) {
status = pthread_cond_timedwait(&foo.cond, &foo.mutex, &time);
}
pthread_mutex_unlock(&foo.mutex);
/* Just use this to test the time out. The cond var is never signaled. */
pthread_mutex_lock(&foo.mutex);
while (foo.flag == 0 && status != ETIMEDOUT) {
status = pthread_cond_timedwait(&foo.cond, &foo.mutex, &time);
}
pthread_mutex_unlock(&foo.mutex);
/* post the main event */
pthread_mutex_lock(&main_event.mutex);
main_event.flag = 1;
pthread_cond_signal(&main_event.cond);
pthread_mutex_unlock(&main_event.mutex);
/* post the main event */
pthread_mutex_lock(&main_event.mutex);
main_event.flag = 1;
pthread_cond_signal(&main_event.cond);
pthread_mutex_unlock(&main_event.mutex);
/* that's it, bye */
return (void*) status;
/* that's it, bye */
return (void*) status;
}
int libc_ex7(void) {
unsigned long count;
unsigned long count;
setvbuf(stdout, NULL, _IONBF, 0);
setvbuf(stdout, NULL, _IONBF, 0);
/* initialize main event cond var */
pthread_cond_init(&main_event.cond, NULL);
pthread_mutex_init(&main_event.mutex, NULL);
main_event.flag = 0;
/* initialize main event cond var */
pthread_cond_init(&main_event.cond, NULL);
pthread_mutex_init(&main_event.mutex, NULL);
main_event.flag = 0;
for (count = 0; count < 20; ++count) {
pthread_t thread;
int status;
for (count = 0; count < 20; ++count) {
pthread_t thread;
int status;
/* pass down the milli-second timeout in the void* param */
status = pthread_create(&thread, NULL, test_thread, (void*) (count
* 100));
if (status != 0) {
printf("status = %d, count = %lu: %s\n", status, count, strerror(
errno));
return 1;
} else {
/* pass down the milli-second timeout in the void* param */
status = pthread_create(&thread, NULL, test_thread, (void*) (count
* 100));
if (status != 0) {
printf("status = %d, count = %lu: %s\n", status, count, strerror(
errno));
return 1;
} else {
/* wait for the event posted by the child thread */
pthread_mutex_lock(&main_event.mutex);
while (main_event.flag == 0) {
pthread_cond_wait(&main_event.cond, &main_event.mutex);
}
main_event.flag = 0;
pthread_mutex_unlock(&main_event.mutex);
/* wait for the event posted by the child thread */
pthread_mutex_lock(&main_event.mutex);
while (main_event.flag == 0) {
pthread_cond_wait(&main_event.cond, &main_event.mutex);
}
main_event.flag = 0;
pthread_mutex_unlock(&main_event.mutex);
printf("count = %lu\n", count);
}
printf("count = %lu\n", count);
}
usleep(10);
}
usleep(10);
}
return 0;
return 0;
}
#include <finsh.h>
FINSH_FUNCTION_EXPORT(libc_ex7, example 7 for libc);

902
examples/libc/file.c
View File

@@ -14,503 +14,503 @@
const char* text = "this is a test string\n";
void libc_fstat()
{
int fd;
struct stat s;
int fd;
struct stat s;
fd = open("/tmp/tt.txt", O_WRONLY | O_CREAT, 0);
if (fd < 0)
{
printf("open failed\n");
return;
}
fd = open("/tmp/tt.txt", O_WRONLY | O_CREAT, 0);
if (fd < 0)
{
printf("open failed\n");
return;
}
write(fd, text, strlen(text) + 1);
printf("begin: %d\n", lseek(fd, 0, SEEK_SET));
printf("end: %d\n", lseek(fd, 0, SEEK_END));
write(fd, text, strlen(text) + 1);
printf("begin: %d\n", lseek(fd, 0, SEEK_SET));
printf("end: %d\n", lseek(fd, 0, SEEK_END));
printf("fstat result: %d\n", fstat(fd, &s));
close(fd);
printf("fstat result: %d\n", fstat(fd, &s));
close(fd);
}
FINSH_FUNCTION_EXPORT(libc_fstat, fstat test for libc);
void libc_lseek()
{
int fd;
int fd;
fd = open("/tmp/tt.txt", O_WRONLY | O_CREAT, 0);
if (fd < 0)
{
printf("open failed\n");
return;
}
fd = open("/tmp/tt.txt", O_WRONLY | O_CREAT, 0);
if (fd < 0)
{
printf("open failed\n");
return;
}
write(fd, text, strlen(text) + 1);
printf("begin: %d\n", lseek(fd, 0, SEEK_SET));
printf("end: %d\n", lseek(fd, 0, SEEK_END));
close(fd);
write(fd, text, strlen(text) + 1);
printf("begin: %d\n", lseek(fd, 0, SEEK_SET));
printf("end: %d\n", lseek(fd, 0, SEEK_END));
close(fd);
}
FINSH_FUNCTION_EXPORT(libc_lseek, lseek test for libc);
void sleep(int tick)
{
rt_thread_sleep(tick);
rt_thread_sleep(tick);
}
int libc_fseek(void)
{
const char *tmpdir;
char *fname;
int fd;
FILE *fp;
const char outstr[] = "hello world!\n";
char strbuf[sizeof outstr];
char buf[200];
struct stat st1;
struct stat st2;
int result = 0;
const char *tmpdir;
char *fname;
int fd;
FILE *fp;
const char outstr[] = "hello world!\n";
char strbuf[sizeof outstr];
char buf[200];
struct stat st1;
struct stat st2;
int result = 0;
tmpdir = getenv("TMPDIR");
if (tmpdir == NULL || tmpdir[0] == '\0')
tmpdir = "/tmp";
tmpdir = getenv("TMPDIR");
if (tmpdir == NULL || tmpdir[0] == '\0')
tmpdir = "/tmp";
asprintf(&fname, "%s/tst-fseek.XXXXXX", tmpdir);
if (fname == NULL)
{
fprintf(stderr, "cannot generate name for temporary file: %s\n",
strerror(errno));
return 1;
}
asprintf(&fname, "%s/tst-fseek.XXXXXX", tmpdir);
if (fname == NULL)
{
fprintf(stderr, "cannot generate name for temporary file: %s\n",
strerror(errno));
return 1;
}
/* Create a temporary file. */
fd = mkstemp(fname);
if (fd == -1)
{
fprintf(stderr, "cannot open temporary file: %s\n", strerror(errno));
return 1;
}
/* Create a temporary file. */
fd = mkstemp(fname);
if (fd == -1)
{
fprintf(stderr, "cannot open temporary file: %s\n", strerror(errno));
return 1;
}
fp = fdopen(fd, "w+");
if (fp == NULL)
{
fprintf(stderr, "cannot get FILE for temporary file: %s\n", strerror(
errno));
return 1;
}
setbuffer(fp, strbuf, sizeof(outstr) - 1);
fp = fdopen(fd, "w+");
if (fp == NULL)
{
fprintf(stderr, "cannot get FILE for temporary file: %s\n", strerror(
errno));
return 1;
}
setbuffer(fp, strbuf, sizeof(outstr) - 1);
if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: write error\n", __LINE__);
result = 1;
goto out;
}
if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: write error\n", __LINE__);
result = 1;
goto out;
}
/* The EOF flag must be reset. */
if (fgetc(fp) != EOF)
{
printf("%d: managed to read at end of file\n", __LINE__);
result = 1;
}
else if (!feof(fp))
{
printf("%d: EOF flag not set\n", __LINE__);
result = 1;
}
if (fseek(fp, 0, SEEK_CUR) != 0)
{
printf("%d: fseek(fp, 0, SEEK_CUR) failed\n", __LINE__);
result = 1;
}
else if (feof(fp))
{
printf("%d: fseek() didn't reset EOF flag\n", __LINE__);
result = 1;
}
/* The EOF flag must be reset. */
if (fgetc(fp) != EOF)
{
printf("%d: managed to read at end of file\n", __LINE__);
result = 1;
}
else if (!feof(fp))
{
printf("%d: EOF flag not set\n", __LINE__);
result = 1;
}
if (fseek(fp, 0, SEEK_CUR) != 0)
{
printf("%d: fseek(fp, 0, SEEK_CUR) failed\n", __LINE__);
result = 1;
}
else if (feof(fp))
{
printf("%d: fseek() didn't reset EOF flag\n", __LINE__);
result = 1;
}
/* Do the same for fseeko(). */
if (fgetc(fp) != EOF)
{
printf("%d: managed to read at end of file\n", __LINE__);
result = 1;
}
else if (!feof(fp))
{
printf("%d: EOF flag not set\n", __LINE__);
result = 1;
}
if (fseeko(fp, 0, SEEK_CUR) != 0)
{
printf("%d: fseek(fp, 0, SEEK_CUR) failed\n", __LINE__);
result = 1;
}
else if (feof(fp))
{
printf("%d: fseek() didn't reset EOF flag\n", __LINE__);
result = 1;
}
/* Do the same for fseeko(). */
if (fgetc(fp) != EOF)
{
printf("%d: managed to read at end of file\n", __LINE__);
result = 1;
}
else if (!feof(fp))
{
printf("%d: EOF flag not set\n", __LINE__);
result = 1;
}
if (fseeko(fp, 0, SEEK_CUR) != 0)
{
printf("%d: fseek(fp, 0, SEEK_CUR) failed\n", __LINE__);
result = 1;
}
else if (feof(fp))
{
printf("%d: fseek() didn't reset EOF flag\n", __LINE__);
result = 1;
}
/* Go back to the beginning of the file: absolute. */
if (fseek(fp, 0, SEEK_SET) != 0)
{
printf("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__);
result = 1;
}
else if (fflush(fp) != 0)
{
printf("%d: fflush() failed\n", __LINE__);
result = 1;
}
else if (lseek(fd, 0, SEEK_CUR) != 0)
{
int pos = lseek(fd, 0, SEEK_CUR);
printf("%d: lseek() returned different position, pos %d\n", __LINE__,
pos);
result = 1;
}
else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: fread() failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
{
printf("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__);
result = 1;
}
/* Go back to the beginning of the file: absolute. */
if (fseek(fp, 0, SEEK_SET) != 0)
{
printf("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__);
result = 1;
}
else if (fflush(fp) != 0)
{
printf("%d: fflush() failed\n", __LINE__);
result = 1;
}
else if (lseek(fd, 0, SEEK_CUR) != 0)
{
int pos = lseek(fd, 0, SEEK_CUR);
printf("%d: lseek() returned different position, pos %d\n", __LINE__,
pos);
result = 1;
}
else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: fread() failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
{
printf("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__);
result = 1;
}
/* Now with fseeko. */
if (fseeko(fp, 0, SEEK_SET) != 0)
{
printf("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__);
result = 1;
}
else if (fflush(fp) != 0)
{
printf("%d: fflush() failed\n", __LINE__);
result = 1;
}
else if (lseek(fd, 0, SEEK_CUR) != 0)
{
printf("%d: lseek() returned different position\n", __LINE__);
result = 1;
}
else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: fread() failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
{
printf("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__);
result = 1;
}
/* Now with fseeko. */
if (fseeko(fp, 0, SEEK_SET) != 0)
{
printf("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__);
result = 1;
}
else if (fflush(fp) != 0)
{
printf("%d: fflush() failed\n", __LINE__);
result = 1;
}
else if (lseek(fd, 0, SEEK_CUR) != 0)
{
printf("%d: lseek() returned different position\n", __LINE__);
result = 1;
}
else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: fread() failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
{
printf("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__);
result = 1;
}
/* Go back to the beginning of the file: relative. */
if (fseek(fp, -((int) sizeof(outstr) - 1), SEEK_CUR) != 0)
{
printf("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__);
result = 1;
}
else if (fflush(fp) != 0)
{
printf("%d: fflush() failed\n", __LINE__);
result = 1;
}
else if (lseek(fd, 0, SEEK_CUR) != 0)
{
printf("%d: lseek() returned different position\n", __LINE__);
result = 1;
}
else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: fread() failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
{
printf("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__);
result = 1;
}
/* Go back to the beginning of the file: relative. */
if (fseek(fp, -((int) sizeof(outstr) - 1), SEEK_CUR) != 0)
{
printf("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__);
result = 1;
}
else if (fflush(fp) != 0)
{
printf("%d: fflush() failed\n", __LINE__);
result = 1;
}
else if (lseek(fd, 0, SEEK_CUR) != 0)
{
printf("%d: lseek() returned different position\n", __LINE__);
result = 1;
}
else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: fread() failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
{
printf("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__);
result = 1;
}
/* Now with fseeko. */
if (fseeko(fp, -((int) sizeof(outstr) - 1), SEEK_CUR) != 0)
{
printf("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__);
result = 1;
}
else if (fflush(fp) != 0)
{
printf("%d: fflush() failed\n", __LINE__);
result = 1;
}
else if (lseek(fd, 0, SEEK_CUR) != 0)
{
printf("%d: lseek() returned different position\n", __LINE__);
result = 1;
}
else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: fread() failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
{
printf("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__);
result = 1;
}
/* Now with fseeko. */
if (fseeko(fp, -((int) sizeof(outstr) - 1), SEEK_CUR) != 0)
{
printf("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__);
result = 1;
}
else if (fflush(fp) != 0)
{
printf("%d: fflush() failed\n", __LINE__);
result = 1;
}
else if (lseek(fd, 0, SEEK_CUR) != 0)
{
printf("%d: lseek() returned different position\n", __LINE__);
result = 1;
}
else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: fread() failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
{
printf("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__);
result = 1;
}
/* Go back to the beginning of the file: from the end. */
if (fseek(fp, -((int) sizeof(outstr) - 1), SEEK_END) != 0)
{
printf("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__);
result = 1;
}
else if (fflush(fp) != 0)
{
printf("%d: fflush() failed\n", __LINE__);
result = 1;
}
else if (lseek(fd, 0, SEEK_CUR) != 0)
{
printf("%d: lseek() returned different position\n", __LINE__);
result = 1;
}
else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: fread() failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
{
printf("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__);
result = 1;
}
/* Go back to the beginning of the file: from the end. */
if (fseek(fp, -((int) sizeof(outstr) - 1), SEEK_END) != 0)
{
printf("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__);
result = 1;
}
else if (fflush(fp) != 0)
{
printf("%d: fflush() failed\n", __LINE__);
result = 1;
}
else if (lseek(fd, 0, SEEK_CUR) != 0)
{
printf("%d: lseek() returned different position\n", __LINE__);
result = 1;
}
else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: fread() failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
{
printf("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__);
result = 1;
}
/* Now with fseeko. */
if (fseeko(fp, -((int) sizeof(outstr) - 1), SEEK_END) != 0)
{
printf("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__);
result = 1;
}
else if (fflush(fp) != 0)
{
printf("%d: fflush() failed\n", __LINE__);
result = 1;
}
else if (lseek(fd, 0, SEEK_CUR) != 0)
{
printf("%d: lseek() returned different position\n", __LINE__);
result = 1;
}
else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: fread() failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
{
printf("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__);
result = 1;
}
/* Now with fseeko. */
if (fseeko(fp, -((int) sizeof(outstr) - 1), SEEK_END) != 0)
{
printf("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__);
result = 1;
}
else if (fflush(fp) != 0)
{
printf("%d: fflush() failed\n", __LINE__);
result = 1;
}
else if (lseek(fd, 0, SEEK_CUR) != 0)
{
printf("%d: lseek() returned different position\n", __LINE__);
result = 1;
}
else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: fread() failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
{
printf("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__);
result = 1;
}
if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: write error 2\n", __LINE__);
result = 1;
goto out;
}
if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: write error 2\n", __LINE__);
result = 1;
goto out;
}
if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: write error 3\n", __LINE__);
result = 1;
goto out;
}
if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: write error 3\n", __LINE__);
result = 1;
goto out;
}
if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: write error 4\n", __LINE__);
result = 1;
goto out;
}
if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: write error 4\n", __LINE__);
result = 1;
goto out;
}
if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: write error 5\n", __LINE__);
result = 1;
goto out;
}
if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
{
printf("%d: write error 5\n", __LINE__);
result = 1;
goto out;
}
if (fputc('1', fp) == EOF || fputc('2', fp) == EOF)
{
printf("%d: cannot add characters at the end\n", __LINE__);
result = 1;
goto out;
}
if (fputc('1', fp) == EOF || fputc('2', fp) == EOF)
{
printf("%d: cannot add characters at the end\n", __LINE__);
result = 1;
goto out;
}
/* Check the access time. */
if (fstat(fd, &st1) < 0)
{
printf("%d: fstat64() before fseeko() failed\n\n", __LINE__);
result = 1;
}
else
{
sleep(1);
/* Check the access time. */
if (fstat(fd, &st1) < 0)
{
printf("%d: fstat64() before fseeko() failed\n\n", __LINE__);
result = 1;
}
else
{
sleep(1);
if (fseek(fp, -(2 + 2 * (sizeof(outstr) - 1)), SEEK_CUR) != 0)
{
printf("%d: fseek() after write characters failed\n", __LINE__);
result = 1;
goto out;
}
else
{
if (fseek(fp, -(2 + 2 * (sizeof(outstr) - 1)), SEEK_CUR) != 0)
{
printf("%d: fseek() after write characters failed\n", __LINE__);
result = 1;
goto out;
}
else
{
time_t t;
/* Make sure the timestamp actually can be different. */
sleep(1);
t = time(NULL);
time_t t;
/* Make sure the timestamp actually can be different. */
sleep(1);
t = time(NULL);
if (fstat(fd, &st2) < 0)
{
printf("%d: fstat64() after fseeko() failed\n\n", __LINE__);
result = 1;
}
if (st1.st_ctime >= t)
{
printf("%d: st_ctime not updated\n", __LINE__);
result = 1;
}
if (st1.st_mtime >= t)
{
printf("%d: st_mtime not updated\n", __LINE__);
result = 1;
}
if (st1.st_ctime >= st2.st_ctime)
{
printf("%d: st_ctime not changed\n", __LINE__);
result = 1;
}
if (st1.st_mtime >= st2.st_mtime)
{
printf("%d: st_mtime not changed\n", __LINE__);
result = 1;
}
}
}
if (fstat(fd, &st2) < 0)
{
printf("%d: fstat64() after fseeko() failed\n\n", __LINE__);
result = 1;
}
if (st1.st_ctime >= t)
{
printf("%d: st_ctime not updated\n", __LINE__);
result = 1;
}
if (st1.st_mtime >= t)
{
printf("%d: st_mtime not updated\n", __LINE__);
result = 1;
}
if (st1.st_ctime >= st2.st_ctime)
{
printf("%d: st_ctime not changed\n", __LINE__);
result = 1;
}
if (st1.st_mtime >= st2.st_mtime)
{
printf("%d: st_mtime not changed\n", __LINE__);
result = 1;
}
}
}
if (fread(buf, 1, 2 + 2 * (sizeof(outstr) - 1), fp) != 2 + 2
* (sizeof(outstr) - 1))
{
printf("%d: reading 2 records plus bits failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0 || memcmp(
&buf[sizeof(outstr) - 1], outstr, sizeof(outstr) - 1) != 0 || buf[2
* (sizeof(outstr) - 1)] != '1' || buf[2 * (sizeof(outstr) - 1) + 1]
!= '2')
{
printf("%d: reading records failed\n", __LINE__);
result = 1;
}
else if (ungetc('9', fp) == EOF)
{
printf("%d: ungetc() failed\n", __LINE__);
result = 1;
}
else if (fseek(fp, -(2 + 2 * (sizeof(outstr) - 1)), SEEK_END) != 0)
{
printf("%d: fseek after ungetc failed\n", __LINE__);
result = 1;
}
else if (fread(buf, 1, 2 + 2 * (sizeof(outstr) - 1), fp) != 2 + 2
* (sizeof(outstr) - 1))
{
printf("%d: reading 2 records plus bits failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0 || memcmp(
&buf[sizeof(outstr) - 1], outstr, sizeof(outstr) - 1) != 0 || buf[2
* (sizeof(outstr) - 1)] != '1')
{
printf("%d: reading records for the second time failed\n", __LINE__);
result = 1;
}
else if (buf[2 * (sizeof(outstr) - 1) + 1] == '9')
{
printf("%d: unget character not ignored\n", __LINE__);
result = 1;
}
else if (buf[2 * (sizeof(outstr) - 1) + 1] != '2')
{
printf("%d: unget somehow changed character\n", __LINE__);
result = 1;
}
if (fread(buf, 1, 2 + 2 * (sizeof(outstr) - 1), fp) != 2 + 2
* (sizeof(outstr) - 1))
{
printf("%d: reading 2 records plus bits failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0 || memcmp(
&buf[sizeof(outstr) - 1], outstr, sizeof(outstr) - 1) != 0 || buf[2
* (sizeof(outstr) - 1)] != '1' || buf[2 * (sizeof(outstr) - 1) + 1]
!= '2')
{
printf("%d: reading records failed\n", __LINE__);
result = 1;
}
else if (ungetc('9', fp) == EOF)
{
printf("%d: ungetc() failed\n", __LINE__);
result = 1;
}
else if (fseek(fp, -(2 + 2 * (sizeof(outstr) - 1)), SEEK_END) != 0)
{
printf("%d: fseek after ungetc failed\n", __LINE__);
result = 1;
}
else if (fread(buf, 1, 2 + 2 * (sizeof(outstr) - 1), fp) != 2 + 2
* (sizeof(outstr) - 1))
{
printf("%d: reading 2 records plus bits failed\n", __LINE__);
result = 1;
}
else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0 || memcmp(
&buf[sizeof(outstr) - 1], outstr, sizeof(outstr) - 1) != 0 || buf[2
* (sizeof(outstr) - 1)] != '1')
{
printf("%d: reading records for the second time failed\n", __LINE__);
result = 1;
}
else if (buf[2 * (sizeof(outstr) - 1) + 1] == '9')
{
printf("%d: unget character not ignored\n", __LINE__);
result = 1;
}
else if (buf[2 * (sizeof(outstr) - 1) + 1] != '2')
{
printf("%d: unget somehow changed character\n", __LINE__);
result = 1;
}
fclose(fp);
fclose(fp);
fp = fopen(fname, "r");
if (fp == NULL)
{
printf("%d: fopen() failed\n\n", __LINE__);
result = 1;
}
else if (fstat(fileno(fp), &st1) < 0)
{
printf("%d: fstat64() before fseeko() failed\n\n", __LINE__);
result = 1;
}
else if (fseeko(fp, 0, SEEK_END) != 0)
{
printf("%d: fseeko(fp, 0, SEEK_END) failed\n", __LINE__);
result = 1;
}
else if (ftello(fp) != st1.st_size)
{
printf("%d: fstat64 st_size %zd ftello %zd\n", __LINE__,
(size_t) st1.st_size, (size_t) ftello(fp));
result = 1;
}
else
printf("%d: SEEK_END works\n", __LINE__);
if (fp != NULL)
fclose(fp);
fp = fopen(fname, "r");
if (fp == NULL)
{
printf("%d: fopen() failed\n\n", __LINE__);
result = 1;
}
else if (fstat(fileno(fp), &st1) < 0)
{
printf("%d: fstat64() before fseeko() failed\n\n", __LINE__);
result = 1;
}
else if (fseeko(fp, 0, SEEK_END) != 0)
{
printf("%d: fseeko(fp, 0, SEEK_END) failed\n", __LINE__);
result = 1;
}
else if (ftello(fp) != st1.st_size)
{
printf("%d: fstat64 st_size %zd ftello %zd\n", __LINE__,
(size_t) st1.st_size, (size_t) ftello(fp));
result = 1;
}
else
printf("%d: SEEK_END works\n", __LINE__);
if (fp != NULL)
fclose(fp);
fp = fopen(fname, "r");
if (fp == NULL)
{
printf("%d: fopen() failed\n\n", __LINE__);
result = 1;
}
else if (fstat(fileno(fp), &st1) < 0)
{
printf("%d: fstat64() before fgetc() failed\n\n", __LINE__);
result = 1;
}
else if (fgetc(fp) == EOF)
{
printf("%d: fgetc() before fseeko() failed\n\n", __LINE__);
result = 1;
}
else if (fseeko(fp, 0, SEEK_END) != 0)
{
printf("%d: fseeko(fp, 0, SEEK_END) failed\n", __LINE__);
result = 1;
}
else if (ftello(fp) != st1.st_size)
{
printf("%d: fstat64 st_size %zd ftello %zd\n", __LINE__,
(size_t) st1.st_size, (size_t) ftello(fp));
result = 1;
}
else
printf("%d: SEEK_END works\n", __LINE__);
if (fp != NULL)
fclose(fp);
fp = fopen(fname, "r");
if (fp == NULL)
{
printf("%d: fopen() failed\n\n", __LINE__);
result = 1;
}
else if (fstat(fileno(fp), &st1) < 0)
{
printf("%d: fstat64() before fgetc() failed\n\n", __LINE__);
result = 1;
}
else if (fgetc(fp) == EOF)
{
printf("%d: fgetc() before fseeko() failed\n\n", __LINE__);
result = 1;
}
else if (fseeko(fp, 0, SEEK_END) != 0)
{
printf("%d: fseeko(fp, 0, SEEK_END) failed\n", __LINE__);
result = 1;
}
else if (ftello(fp) != st1.st_size)
{
printf("%d: fstat64 st_size %zd ftello %zd\n", __LINE__,
(size_t) st1.st_size, (size_t) ftello(fp));
result = 1;
}
else
printf("%d: SEEK_END works\n", __LINE__);
if (fp != NULL)
fclose(fp);
out: unlink(fname);
out: unlink(fname);
return result;
return result;
}
FINSH_FUNCTION_EXPORT(libc_fseek, lseek test for libc);

54
examples/libc/memory.c
View File

@@ -12,45 +12,45 @@
static int errors = 0;
static void merror(const char *msg)
{
++errors;
printf("Error: %s\n", msg);
++errors;
printf("Error: %s\n", msg);
}
int libc_mem(void)
{
void *p;
int save;
void *p;
int save;
errno = 0;
errno = 0;
p = malloc(-1);
save = errno;
p = malloc(-1);
save = errno;
if (p != NULL)
merror("malloc (-1) succeeded.");
if (p != NULL)
merror("malloc (-1) succeeded.");
if (p == NULL && save != ENOMEM)
merror("errno is not set correctly");
if (p == NULL && save != ENOMEM)
merror("errno is not set correctly");
p = malloc(10);
if (p == NULL)
merror("malloc (10) failed.");
p = malloc(10);
if (p == NULL)
merror("malloc (10) failed.");
/* realloc (p, 0) == free (p). */
p = realloc(p, 0);
if (p != NULL)
merror("realloc (p, 0) failed.");
/* realloc (p, 0) == free (p). */
p = realloc(p, 0);
if (p != NULL)
merror("realloc (p, 0) failed.");
p = malloc(0);
if (p == NULL)
{
printf("malloc(0) returns NULL\n");
}
p = malloc(0);
if (p == NULL)
{
printf("malloc(0) returns NULL\n");
}
p = realloc(p, 0);
if (p != NULL)
merror("realloc (p, 0) failed.");
p = realloc(p, 0);
if (p != NULL)
merror("realloc (p, 0) failed.");
return errors != 0;
return errors != 0;
}
FINSH_FUNCTION_EXPORT(libc_mem, memory test for libc);

162
examples/libc/mq.c
View File

@@ -7,113 +7,113 @@
#define MQ_NAME_1 "testmsg1"
#define MQ_NAME_2 "testmsg2"
#define MSG_SIZE 128
#define MAX_MSG 3
#define MSG_SIZE 128
#define MAX_MSG 3
const char *s_msg_ptr[] = {"msg test 1", "msg test 2", "msg test 3"};
char r_msg_ptr_1[MAX_MSG][MSG_SIZE];
char r_msg_ptr_2[MAX_MSG][MSG_SIZE];
pthread_t send1, send2, rev1, rev2;
int * send_1(void * mq)
int * send_1(void * mq)
{
int i;
mqd_t mq1 = *(mqd_t *)mq;
int i;
mqd_t mq1 = *(mqd_t *)mq;
printf("Enter into send_1 \n");
for (i = 0; i < MAX_MSG; i++ ) {
if ( -1 == mq_send(mq1, s_msg_ptr[i], MSG_SIZE, i)) {
perror("mq_send doesn't return success \n");
pthread_exit((void *)1);
}
printf("[%d] send '%s' in thread send_1. \n", i+1, s_msg_ptr[i]);
}
pthread_exit((void *)0);
printf("Enter into send_1 \n");
for (i = 0; i < MAX_MSG; i++ ) {
if ( -1 == mq_send(mq1, s_msg_ptr[i], MSG_SIZE, i)) {
perror("mq_send doesn't return success \n");
pthread_exit((void *)1);
}
printf("[%d] send '%s' in thread send_1. \n", i+1, s_msg_ptr[i]);
}
pthread_exit((void *)0);
}
int * send_2(void * mq)
int * send_2(void * mq)
{
int i;
mqd_t mq2 = *(mqd_t *)mq;
int i;
mqd_t mq2 = *(mqd_t *)mq;
printf("Enter into send_2 \n");
for (i = 0; i < MAX_MSG; i++ ) {
if ( -1 == mq_send(mq2, s_msg_ptr[i], MSG_SIZE, i)) {
perror("mq_send doesn't return success \n");
pthread_exit((void *)1);
}
printf("[%d] send '%s' in thread send_2. \n", i+1, s_msg_ptr[i]);
}
pthread_exit((void *)0);
printf("Enter into send_2 \n");
for (i = 0; i < MAX_MSG; i++ ) {
if ( -1 == mq_send(mq2, s_msg_ptr[i], MSG_SIZE, i)) {
perror("mq_send doesn't return success \n");
pthread_exit((void *)1);
}
printf("[%d] send '%s' in thread send_2. \n", i+1, s_msg_ptr[i]);
}
pthread_exit((void *)0);
}
int * receive_1(void * mq)
int * receive_1(void * mq)
{
int i;
mqd_t mq1 = *(mqd_t *)mq;
int i;
mqd_t mq1 = *(mqd_t *)mq;
printf("Enter into receive_1 \n");
for (i = 0; i< MAX_MSG; i++) {
if ( -1 == mq_receive(mq1, r_msg_ptr_1[i], MSG_SIZE, NULL) ) {
perror("mq_receive doesn't return success \n");
pthread_exit((void *)1);
}
printf("[%d] receive '%s' in thread receive_1. \n", i+1, r_msg_ptr_1[i]);
}
pthread_exit((void *)0);
printf("Enter into receive_1 \n");
for (i = 0; i< MAX_MSG; i++) {
if ( -1 == mq_receive(mq1, r_msg_ptr_1[i], MSG_SIZE, NULL) ) {
perror("mq_receive doesn't return success \n");
pthread_exit((void *)1);
}
printf("[%d] receive '%s' in thread receive_1. \n", i+1, r_msg_ptr_1[i]);
}
pthread_exit((void *)0);
}
int * receive_2(void * mq)
int * receive_2(void * mq)
{
int i;
mqd_t mq2 = *(mqd_t *)mq;
int i;
mqd_t mq2 = *(mqd_t *)mq;
printf("Enter into receive_2 \n");
for (i = 0; i< MAX_MSG; i++) {
if ( -1 == mq_receive(mq2, r_msg_ptr_2[i], MSG_SIZE, NULL) ) {
perror("mq_receive doesn't return success \n");
pthread_exit((void *)1);
}
printf("[%d] receive '%s' in thread receive_2. \n", i+1, r_msg_ptr_2[i]);
}
pthread_exit((void *)0);
printf("Enter into receive_2 \n");
for (i = 0; i< MAX_MSG; i++) {
if ( -1 == mq_receive(mq2, r_msg_ptr_2[i], MSG_SIZE, NULL) ) {
perror("mq_receive doesn't return success \n");
pthread_exit((void *)1);
}
printf("[%d] receive '%s' in thread receive_2. \n", i+1, r_msg_ptr_2[i]);
}
pthread_exit((void *)0);
}
int libc_mq()
{
mqd_t mq1 = 0, mq2 = 0;
struct mq_attr mqstat;
int oflag = O_CREAT|O_RDWR;
mqd_t mq1 = 0, mq2 = 0;
struct mq_attr mqstat;
int oflag = O_CREAT|O_RDWR;
memset(&mqstat, 0, sizeof(mqstat));
mqstat.mq_maxmsg = MAX_MSG;
mqstat.mq_msgsize = MSG_SIZE;
mqstat.mq_flags = 0;
if( ((mqd_t) -1) == (mq1 = mq_open(MQ_NAME_1,oflag,0777, &mqstat)) ) {
printf("mq_open doesn't return success \n");
return -1;
}
if( ((mqd_t) -1) == (mq2 = mq_open(MQ_NAME_2,oflag,0777, &mqstat)) ) {
printf("mq_open doesn't return success \n");
return -1;
}
pthread_create(&send1, NULL, (void *)send_1, (void *)&mq1);
pthread_create(&send2, NULL, (void *)send_2, (void *)&mq2);
pthread_create(&rev1, NULL, (void *)receive_1, (void *)&mq1);
pthread_create(&rev2, NULL, (void *)receive_2, (void *)&mq2);
pthread_join(send1, NULL);
pthread_join(send2, NULL);
pthread_join(rev1, NULL);
pthread_join(rev2, NULL);
mq_close(mq1);
mq_close(mq2);
mq_unlink(MQ_NAME_1);
mq_unlink(MQ_NAME_2);
memset(&mqstat, 0, sizeof(mqstat));
mqstat.mq_maxmsg = MAX_MSG;
mqstat.mq_msgsize = MSG_SIZE;
mqstat.mq_flags = 0;
printf("PASSED\n");
return 0;
if( ((mqd_t) -1) == (mq1 = mq_open(MQ_NAME_1,oflag,0777, &mqstat)) ) {
printf("mq_open doesn't return success \n");
return -1;
}
if( ((mqd_t) -1) == (mq2 = mq_open(MQ_NAME_2,oflag,0777, &mqstat)) ) {
printf("mq_open doesn't return success \n");
return -1;
}
pthread_create(&send1, NULL, (void *)send_1, (void *)&mq1);
pthread_create(&send2, NULL, (void *)send_2, (void *)&mq2);
pthread_create(&rev1, NULL, (void *)receive_1, (void *)&mq1);
pthread_create(&rev2, NULL, (void *)receive_2, (void *)&mq2);
pthread_join(send1, NULL);
pthread_join(send2, NULL);
pthread_join(rev1, NULL);
pthread_join(rev2, NULL);
mq_close(mq1);
mq_close(mq2);
mq_unlink(MQ_NAME_1);
mq_unlink(MQ_NAME_2);
printf("PASSED\n");
return 0;
}
#include <finsh.h>
FINSH_FUNCTION_EXPORT(libc_mq, posix mqueue test);

54
examples/libc/printf.c
View File

@@ -142,59 +142,59 @@ int printf_test()
int i;
printf ("snprintf (\"%%30s\", \"foo\") == %d, \"%.*s\"\n",
snprintf (buf, sizeof (buf), "%30s", "foo"), (int) sizeof (buf),
buf);
snprintf (buf, sizeof (buf), "%30s", "foo"), (int) sizeof (buf),
buf);
memset(buf2,0,sizeof(buf));
i=snprintf(buf2, 256, "%.9999u", 10);
printf("%i %i\n",i,strlen(buf2));
printf ("snprintf (\"%%.999999u\", 10) == %d\n",
snprintf(buf2, sizeof(buf2), "%.999999u", 10));
snprintf(buf2, sizeof(buf2), "%.999999u", 10));
}
return 0;
}
void libc_printf()
{
printf("stdout test!!\n");
fprintf(stdout, "fprintf test!!\n");
fprintf(stderr, "fprintf test!!\n");
puts("puts test!!\n");
printf("stdout test!!\n");
fprintf(stdout, "fprintf test!!\n");
fprintf(stderr, "fprintf test!!\n");
puts("puts test!!\n");
putc('1', stderr);
putc('2', stderr);
putc('\n', stderr);
putc('1', stderr);
putc('2', stderr);
putc('\n', stderr);
printf_test();
printf_test();
}
FINSH_FUNCTION_EXPORT(libc_printf, printf test in libc);
void libc_dprintf()
{
int fd;
int fd;
fd = open("/dev/console", O_WRONLY, 0);
if (fd >0)
{
dprintf(fd, "fd:%d printf test!!\n", fd);
close(fd);
}
fd = open("/dev/console", O_WRONLY, 0);
if (fd >0)
{
dprintf(fd, "fd:%d printf test!!\n", fd);
close(fd);
}
}
FINSH_FUNCTION_EXPORT(libc_dprintf, dprintf test);
void libc_fdopen()
{
int fd;
FILE* fp;
int fd;
FILE* fp;
fd = open("/dev/console", O_WRONLY, 0);
if (fd >0)
{
fp = fdopen(fd, "w");
fprintf(fp, "fdopen test, fd %d!!\n", fileno(fp));
fclose(fp);
}
fd = open("/dev/console", O_WRONLY, 0);
if (fd >0)
{
fp = fdopen(fd, "w");
fprintf(fp, "fdopen test, fd %d!!\n", fileno(fp));
fclose(fp);
}
}
FINSH_FUNCTION_EXPORT(libc_fdopen, fdopen test);

56
examples/libc/rand.c
View File

@@ -10,34 +10,34 @@
int libc_rand(void)
{
int i1, i2;
int j1, j2;
int i1, i2;
int j1, j2;
/* The C standard says that "If rand is called before any calls to
srand have been made, the same sequence shall be generated as
when srand is first called with a seed value of 1." */
i1 = rand();
i2 = rand();
srand(1);
j1 = rand();
j2 = rand();
if (i1 < 0 || i2 < 0 || j1 < 0 || j2 < 0)
{
puts("Test FAILED!");
}
if (j1 == i1 && j2 == i2)
{
puts("Test succeeded.");
return 0;
}
else
{
if (j1 != i1)
printf("%d != %d\n", j1, i1);
if (j2 != i2)
printf("%d != %d\n", j2, i2);
puts("Test FAILED!");
return 1;
}
/* The C standard says that "If rand is called before any calls to
srand have been made, the same sequence shall be generated as
when srand is first called with a seed value of 1." */
i1 = rand();
i2 = rand();
srand(1);
j1 = rand();
j2 = rand();
if (i1 < 0 || i2 < 0 || j1 < 0 || j2 < 0)
{
puts("Test FAILED!");
}
if (j1 == i1 && j2 == i2)
{
puts("Test succeeded.");
return 0;
}
else
{
if (j1 != i1)
printf("%d != %d\n", j1, i1);
if (j2 != i2)
printf("%d != %d\n", j2, i2);
puts("Test FAILED!");
return 1;
}
}
FINSH_FUNCTION_EXPORT(libc_rand, rand test for libc);

82
examples/libc/sem.c
View File

@@ -5,61 +5,61 @@
static sem_t sema;
static void* other_thread()
{
printf("other_thread here!\n");
printf("other_thread here!\n");
sleep(1);
sleep(1);
while (1)
{
printf("other_thread: sem_post...\n");
if(sem_post(&sema) == -1)
printf("sem_post failed\n");
sleep(1);
}
printf("other_thread dies!\n");
pthread_exit(0);
while (1)
{
printf("other_thread: sem_post...\n");
if(sem_post(&sema) == -1)
printf("sem_post failed\n");
sleep(1);
}
printf("other_thread dies!\n");
pthread_exit(0);
}
static void test_thread(void* parameter)
{
pthread_t tid;
pthread_t tid;
printf("main thread here!\n");
printf("sleep 5 seconds...");
sleep(5);
printf("done\n");
printf("main thread here!\n");
printf("sleep 5 seconds...");
sleep(5);
printf("done\n");
sem_init(&sema, 0, 0);
/* create the "other" thread */
if(pthread_create(&tid, 0, &other_thread, 0)!=0)
/* error */
printf("pthread_create OtherThread failed.\n");
else
printf("created OtherThread=%x\n", tid);
sem_init(&sema, 0, 0);
/* let the other thread run */
while (1)
{
printf("Main: sem_wait...\n");
if(sem_wait(&sema) == -1)
printf("sem_wait failed\n");
printf("Main back.\n\n");
}
/* create the "other" thread */
if(pthread_create(&tid, 0, &other_thread, 0)!=0)
/* error */
printf("pthread_create OtherThread failed.\n");
else
printf("created OtherThread=%x\n", tid);
pthread_exit(0);
/* let the other thread run */
while (1)
{
printf("Main: sem_wait...\n");
if(sem_wait(&sema) == -1)
printf("sem_wait failed\n");
printf("Main back.\n\n");
}
pthread_exit(0);
}
#include <finsh.h>
void libc_sem()
{
rt_thread_t tid;
rt_thread_t tid;
tid = rt_thread_create("semtest", test_thread, RT_NULL,
2048, 20, 5);
if (tid != RT_NULL)
{
rt_thread_startup(tid);
}
tid = rt_thread_create("semtest", test_thread, RT_NULL,
2048, 20, 5);
if (tid != RT_NULL)
{
rt_thread_startup(tid);
}
}
FINSH_FUNCTION_EXPORT(libc_sem, posix semaphore test);

14
examples/libc/time.c
View File

@@ -11,14 +11,14 @@
int speed()
{
int i;
time_t t;
int i;
time_t t;
printf("%d\n", time(0));
for (i = 0; i < 10000000; ++i)
t = time(0);
printf("%d\n", time(0));
for (i = 0; i < 10000000; ++i)
t = time(0);
printf("%d\n", time(0));
return 0;
printf("%d\n", time(0));
return 0;
}
FINSH_FUNCTION_EXPORT(speed, speed test);