[patch] patch for sys-libs/musl

musl-threadname.patch (text/plain), 1.01 KB, created by Felix Janda on 2016-09-14 01:54:09 UTC

--- a/include/pthread.h
+++ b/include/pthread.h
@@ -214,6 +214,7 @@ struct cpu_set_t;
 int pthread_getaffinity_np(pthread_t, size_t, struct cpu_set_t *);
 int pthread_setaffinity_np(pthread_t, size_t, const struct cpu_set_t *);
 int pthread_getattr_np(pthread_t, pthread_attr_t *);
+int pthread_setname_np(pthread_t, const char *);
 int pthread_tryjoin_np(pthread_t, void **);
 int pthread_timedjoin_np(pthread_t, void **, const struct timespec *);
 #endif
--- /dev/null
+++ b/src/thread/pthread_setname_np.c
@@ -0,0 +1,24 @@
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "pthread_impl.h"
+
+int pthread_setname_np(pthread_t thread, const char *name)
+{
+	int fd, status = 0;
+	char f[sizeof "/proc/self/task//comm" + 7];
+	ssize_t len;
+
+	if ((len = strlen(name)) > 15) {
+		errno = ERANGE;
+		return 1;
+	}
+
+	snprintf(f, sizeof f, "/proc/self/task/%d/comm", thread->tid);
+	if ((fd = open(f, O_WRONLY)) == -1) return 1;
+	if (write(fd, name, len) == -1) status = 1;
+
+	close(fd);
+	return status;
+}