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authorAndreas Jaeger <aj@suse.de>2000-12-27 17:14:56 +0000
committerAndreas Jaeger <aj@suse.de>2000-12-27 17:14:56 +0000
commita375a533a2445079390907b962464a379d25f5d5 (patch)
treed781d06615c1d76d029c48e1d7eb69dc21ecbf3d /linuxthreads/Examples/ex4.c
parent21112857299d8a7b9c04fcb2027ae5186acfcf4f (diff)
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* Examples/ex13.c: Make local functions static.
* ecmutex.c: Likewise. 
* Examples/ex14.c: Likewise.
	* Examples/ex2.c: Make local functions static; reformat.
	* Examples/ex1.c: Likewise.
	* Examples/ex4.c: Likewise.
	* Examples/ex5.c: Likewise.
	* Examples/ex7.c: Likewise.

CVS ----------------------------------------------------------------------
Diffstat (limited to 'linuxthreads/Examples/ex4.c')
-rw-r--r--linuxthreads/Examples/ex4.c84
1 files changed, 46 insertions, 38 deletions
diff --git a/linuxthreads/Examples/ex4.c b/linuxthreads/Examples/ex4.c
index 86584de70d..5c8b929e22 100644
--- a/linuxthreads/Examples/ex4.c
+++ b/linuxthreads/Examples/ex4.c
@@ -14,10 +14,11 @@
 
 #if 0
 
-char * str_accumulate(char * s)
+char *
+str_accumulate (char *s)
 {
   static char accu[1024] = { 0 };
-  strcat(accu, s);
+  strcat (accu, s);
   return accu;
 }
 
@@ -35,73 +36,80 @@ static pthread_key_t str_key;
 static pthread_once_t str_alloc_key_once = PTHREAD_ONCE_INIT;
 
 /* Forward functions */
-static void str_alloc_key(void);
-static void str_alloc_destroy_accu(void * accu);
+static void str_alloc_key (void);
+static void str_alloc_destroy_accu (void *accu);
 
 /* Thread-safe version of str_accumulate */
 
-char * str_accumulate(const char * s)
+static char *
+str_accumulate (const char *s)
 {
-  char * accu;
+  char *accu;
 
   /* Make sure the key is allocated */
-  pthread_once(&str_alloc_key_once, str_alloc_key);
+  pthread_once (&str_alloc_key_once, str_alloc_key);
   /* Get the thread-specific data associated with the key */
-  accu = (char *) pthread_getspecific(str_key);
+  accu = (char *) pthread_getspecific (str_key);
   /* It's initially NULL, meaning that we must allocate the buffer first. */
-  if (accu == NULL) {
-    accu = malloc(1024);
-    if (accu == NULL) return NULL;
-    accu[0] = 0;
-    /* Store the buffer pointer in the thread-specific data. */
-    pthread_setspecific(str_key, (void *) accu);
-    printf("Thread %lx: allocating buffer at %p\n", pthread_self(), accu);
-  }
+  if (accu == NULL)
+    {
+      accu = malloc (1024);
+      if (accu == NULL)
+	return NULL;
+      accu[0] = 0;
+      /* Store the buffer pointer in the thread-specific data. */
+      pthread_setspecific (str_key, (void *) accu);
+      printf ("Thread %lx: allocating buffer at %p\n", pthread_self (), accu);
+    }
   /* Now we can use accu just as in the non thread-safe code. */
-  strcat(accu, s);
+  strcat (accu, s);
   return accu;
 }
 
 /* Function to allocate the key for str_alloc thread-specific data. */
 
-static void str_alloc_key(void)
+static void
+str_alloc_key (void)
 {
-  pthread_key_create(&str_key, str_alloc_destroy_accu);
-  printf("Thread %lx: allocated key %d\n", pthread_self(), str_key);
+  pthread_key_create (&str_key, str_alloc_destroy_accu);
+  printf ("Thread %lx: allocated key %d\n", pthread_self (), str_key);
 }
 
 /* Function to free the buffer when the thread exits. */
 /* Called only when the thread-specific data is not NULL. */
 
-static void str_alloc_destroy_accu(void * accu)
+static void
+str_alloc_destroy_accu (void *accu)
 {
-  printf("Thread %lx: freeing buffer at %p\n", pthread_self(), accu);
-  free(accu);
+  printf ("Thread %lx: freeing buffer at %p\n", pthread_self (), accu);
+  free (accu);
 }
 
 /* Test program */
 
-void * process(void * arg)
+static void *
+process (void *arg)
 {
-  char * res;
-  res = str_accumulate("Result of ");
-  res = str_accumulate((char *) arg);
-  res = str_accumulate(" thread");
-  printf("Thread %lx: \"%s\"\n", pthread_self(), res);
+  char *res;
+  res = str_accumulate ("Result of ");
+  res = str_accumulate ((char *) arg);
+  res = str_accumulate (" thread");
+  printf ("Thread %lx: \"%s\"\n", pthread_self (), res);
   return NULL;
 }
 
-int main(int argc, char ** argv)
+int
+main (int argc, char **argv)
 {
-  char * res;
+  char *res;
   pthread_t th1, th2;
 
-  res = str_accumulate("Result of ");
-  pthread_create(&th1, NULL, process, (void *) "first");
-  pthread_create(&th2, NULL, process, (void *) "second");
-  res = str_accumulate("initial thread");
-  printf("Thread %lx: \"%s\"\n", pthread_self(), res);
-  pthread_join(th1, NULL);
-  pthread_join(th2, NULL);
+  res = str_accumulate ("Result of ");
+  pthread_create (&th1, NULL, process, (void *) "first");
+  pthread_create (&th2, NULL, process, (void *) "second");
+  res = str_accumulate ("initial thread");
+  printf ("Thread %lx: \"%s\"\n", pthread_self (), res);
+  pthread_join (th1, NULL);
+  pthread_join (th2, NULL);
   return 0;
 }