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authorUlrich Drepper <drepper@redhat.com>1998-07-07 15:23:31 +0000
committerUlrich Drepper <drepper@redhat.com>1998-07-07 15:23:31 +0000
commit0302fece014004a2df366dacc2b8e9416264a978 (patch)
treef86a7d2d974305cb60123e6ecce0b5e9e674553b /linuxthreads/Examples/ex3.c
parent8bb4abf5cf3700a0be10604240e616a17ed25503 (diff)
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Update.
* sysdeps/unix/sysv/linux/sparc/sparc64/bits/types.h: Add __ino64_t definition.
Diffstat (limited to 'linuxthreads/Examples/ex3.c')
-rw-r--r--linuxthreads/Examples/ex3.c24
1 files changed, 11 insertions, 13 deletions
diff --git a/linuxthreads/Examples/ex3.c b/linuxthreads/Examples/ex3.c
index 002bc90..7557cc7 100644
--- a/linuxthreads/Examples/ex3.c
+++ b/linuxthreads/Examples/ex3.c
@@ -1,6 +1,7 @@
/* Multi-thread searching.
Illustrates: thread cancellation, cleanup handlers. */
+#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
@@ -19,9 +20,7 @@ pthread_t threads[NUM_THREADS];
pthread_mutex_t lock;
int tries;
-int main(argc, argv)
- int argc;
- char ** argv;
+int main(int argc, char ** argv)
{
int i;
int pid;
@@ -31,14 +30,14 @@ int main(argc, argv)
printf("Searching for the number = %d...\n", pid);
/* Initialize the mutex lock */
- pthread_mutex_init(&lock, NULL);
+ pthread_mutex_init(&lock, NULL);
/* Create the searching threads */
for (i=0; i<NUM_THREADS; i++)
pthread_create(&threads[i], NULL, search, (void *)pid);
/* Wait for (join) all the searching threads */
- for (i=0; i<NUM_THREADS; i++)
+ for (i=0; i<NUM_THREADS; i++)
pthread_join(threads[i], NULL);
printf("It took %d tries to find the number.\n", tries);
@@ -47,7 +46,7 @@ int main(argc, argv)
return 0;
}
-/* This is the cleanup function that is called
+/* This is the cleanup function that is called
when the threads are cancelled */
void print_it(void *arg)
@@ -59,7 +58,7 @@ void print_it(void *arg)
tid = pthread_self();
/* Print where the thread was in its search when it was cancelled */
- printf("Thread %lx was canceled on its %d try.\n", tid, *try);
+ printf("Thread %lx was canceled on its %d try.\n", tid, *try);
}
/* This is the search routine that is executed in each thread */
@@ -82,20 +81,20 @@ void *search(void *arg)
ntries = 0;
/* Set the cancellation parameters --
- - Enable thread cancellation
+ - Enable thread cancellation
- Defer the action of the cancellation */
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL);
/* Push the cleanup routine (print_it) onto the thread
- cleanup stack. This routine will be called when the
+ cleanup stack. This routine will be called when the
thread is cancelled. Also note that the pthread_cleanup_push
call must have a matching pthread_cleanup_pop call. The
- push and pop calls MUST be at the same lexical level
+ push and pop calls MUST be at the same lexical level
within the code */
- /* Pass address of `ntries' since the current value of `ntries' is not
+ /* Pass address of `ntries' since the current value of `ntries' is not
the one we want to use in the cleanup function */
pthread_cleanup_push(print_it, (void *)&ntries);
@@ -118,7 +117,7 @@ void *search(void *arg)
printf("Thread %lx found the number!\n", tid);
/* Cancel all the other threads */
- for (j=0; j<NUM_THREADS; j++)
+ for (j=0; j<NUM_THREADS; j++)
if (threads[j] != tid) pthread_cancel(threads[j]);
/* Break out of the while loop */
@@ -141,4 +140,3 @@ void *search(void *arg)
pthread_cleanup_pop(0);
return((void *)0);
}
-