Added some stuff

1 files changed, 54 insertions, 0 deletions

diff --git a/python_cdll_multithread/libpcdlltest.c b/python_cdll_multithread/libpcdlltest.c
new file mode 100644
index 0000000..6bc10ea
--- /dev/null
+++ b/python_cdll_multithread/libpcdlltest.c
@@ -0,0 +1,54 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#include <unistd.h>
+#include <assert.h>
+#include <errno.h>
+#include <time.h>
+#include <pthread.h>
+
+char *t3_buffer = NULL;
+
+__attribute__((visibility("default"))) extern void *testfunc(){
+  fputs( "Yes, it worked, testfunc executed\n", stdout );
+  return NULL;
+}
+
+__attribute__((visibility("default"))) extern void *testfunc2( char *testvalue ){
+  fprintf( stdout, "Value passed from python: %s\n", (const char*)testvalue );
+  return NULL;
+}
+
+__attribute__((visibility("default"))) extern char *testfunc3(){
+  t3_buffer = (char*)calloc( strlen("test") + 1, sizeof(char) );
+  assert( t3_buffer != NULL );
+  snprintf( t3_buffer, (strlen("test") * sizeof(char)) + 1, "test" );
+  return t3_buffer;
+}
+
+__attribute__((visibility("default"))) extern void *cleanup_buffer(){
+  if ( t3_buffer == NULL )
+    return NULL;
+  free( t3_buffer );
+  t3_buffer = NULL;
+  fputs( "Buffer freed\n", stdout );
+  return NULL;
+}
+
+__attribute__((visibility("hidden"))) extern void *thread_func( void *uptr ){
+  uint32_t loop_counter = 0;
+  for ( ; loop_counter < 30; loop_counter++ ){
+    fprintf( stdout, "Loop counter is now %i\n", loop_counter );
+    sleep( 1 );
+  }
+  return NULL;
+}
+
+__attribute__((visibility("default"))) extern void *threadstarter(){
+  pthread_t tid = 0;
+  if ( pthread_create(&tid, NULL, &thread_func, NULL) == -1 )
+    return NULL;
+  return NULL;
+}