Cleanup: Replace all perror() uses by the PERROR macro

[lttng-tools.git] / src / common / compat / compat-poll.c

diff --git a/src/common/compat/compat-poll.c b/src/common/compat/compat-poll.c
index 79fcb7d652b87230815c4d7b6d7146cf8546a9c2..6d34a0e69cbba04d133430d11fbce0626612bad0 100644 (file)
--- a/src/common/compat/compat-poll.c
+++ b/src/common/compat/compat-poll.c
@@ -16,6 +16,7 @@
  */
 
 #define _GNU_SOURCE
+#define _LGPL_SOURCE
 #include <assert.h>
 #include <stdlib.h>
 #include <sys/resource.h>
@@ -52,6 +53,11 @@ static int resize_poll_event(struct compat_poll_event_array *array,
                PERROR("realloc epoll add");
                goto error;
        }
+       if (new_size > array->alloc_size) {
+               /* Zero newly allocated memory */
+               memset(ptr + array->alloc_size, 0,
+                       (new_size - array->alloc_size) * sizeof(*ptr));
+       }
        array->events = ptr;
        array->alloc_size = new_size;
 
@@ -121,7 +127,7 @@ int compat_poll_create(struct lttng_poll_event *events, int size)
        /* This *must* be freed by using lttng_poll_free() */
        wait->events = zmalloc(size * sizeof(struct pollfd));
        if (wait->events == NULL) {
-               perror("zmalloc struct pollfd");
+               PERROR("zmalloc struct pollfd");
                goto error;
        }
 
@@ -129,7 +135,7 @@ int compat_poll_create(struct lttng_poll_event *events, int size)
 
        current->events = zmalloc(size * sizeof(struct pollfd));
        if (current->events == NULL) {
-               perror("zmalloc struct current pollfd");
+               PERROR("zmalloc struct current pollfd");
                goto error;
        }
 
@@ -273,7 +279,7 @@ int compat_poll_wait(struct lttng_poll_event *events, int timeout)
        ret = poll(events->wait.events, events->wait.nb_fd, timeout);
        if (ret < 0) {
                /* At this point, every error is fatal */
-               perror("poll wait");
+               PERROR("poll wait");
                goto error;
        }
 
@@ -300,7 +306,7 @@ void compat_poll_set_max_size(void)
 
        ret = getrlimit(RLIMIT_NOFILE, &lim);
        if (ret < 0) {
-               perror("getrlimit poll RLIMIT_NOFILE");
+               PERROR("getrlimit poll RLIMIT_NOFILE");
                return;
        }