#include <zebra.h>
#include <stddef.h>
+#include <pthread.h>
#include "stream.h"
#include "memory.h"
#include "network.h"
#include "prefix.h"
#include "log.h"
+#include "lib_errors.h"
DEFINE_MTYPE_STATIC(LIB, STREAM, "Stream")
-DEFINE_MTYPE_STATIC(LIB, STREAM_DATA, "Stream data")
DEFINE_MTYPE_STATIC(LIB, STREAM_FIFO, "Stream FIFO")
/* Tests whether a position is valid */
* using stream_put..._at() functions.
*/
#define STREAM_WARN_OFFSETS(S) \
- zlog_warn("&(struct stream): %p, size: %lu, getp: %lu, endp: %lu\n", \
+ flog_warn(EC_LIB_STREAM, \
+ "&(struct stream): %p, size: %lu, getp: %lu, endp: %lu\n", \
(void *)(S), (unsigned long)(S)->size, \
(unsigned long)(S)->getp, (unsigned long)(S)->endp)
#define STREAM_BOUND_WARN(S, WHAT) \
do { \
- zlog_warn("%s: Attempt to %s out of bounds", __func__, \
- (WHAT)); \
+ flog_warn(EC_LIB_STREAM, "%s: Attempt to %s out of bounds", \
+ __func__, (WHAT)); \
STREAM_WARN_OFFSETS(S); \
assert(0); \
} while (0)
#define STREAM_BOUND_WARN2(S, WHAT) \
do { \
- zlog_warn("%s: Attempt to %s out of bounds", __func__, \
- (WHAT)); \
+ flog_warn(EC_LIB_STREAM, "%s: Attempt to %s out of bounds", \
+ __func__, (WHAT)); \
STREAM_WARN_OFFSETS(S); \
} while (0)
#define CHECK_SIZE(S, Z) \
do { \
if (((S)->endp + (Z)) > (S)->size) { \
- zlog_warn( \
+ flog_warn( \
+ EC_LIB_STREAM, \
"CHECK_SIZE: truncating requested size %lu\n", \
(unsigned long)(Z)); \
STREAM_WARN_OFFSETS(S); \
assert(size > 0);
- s = XCALLOC(MTYPE_STREAM, sizeof(struct stream));
-
- if (s == NULL)
- return s;
-
- if ((s->data = XMALLOC(MTYPE_STREAM_DATA, size)) == NULL) {
- XFREE(MTYPE_STREAM, s);
- return NULL;
- }
+ s = XMALLOC(MTYPE_STREAM, sizeof(struct stream) + size);
+ s->getp = s->endp = 0;
+ s->next = NULL;
s->size = size;
return s;
}
if (!s)
return;
- XFREE(MTYPE_STREAM_DATA, s->data);
XFREE(MTYPE_STREAM, s);
}
return new;
}
-size_t stream_resize(struct stream *s, size_t newsize)
+size_t stream_resize_inplace(struct stream **sptr, size_t newsize)
{
- uint8_t *newdata;
- STREAM_VERIFY_SANE(s);
+ struct stream *orig = *sptr;
- newdata = XREALLOC(MTYPE_STREAM_DATA, s->data, newsize);
+ STREAM_VERIFY_SANE(orig);
- if (newdata == NULL)
- return s->size;
+ orig = XREALLOC(MTYPE_STREAM, orig, sizeof(struct stream) + newsize);
- s->data = newdata;
- s->size = newsize;
+ orig->size = newsize;
- if (s->endp > s->size)
- s->endp = s->size;
- if (s->getp > s->endp)
- s->getp = s->endp;
+ if (orig->endp > orig->size)
+ orig->endp = orig->size;
+ if (orig->getp > orig->endp)
+ orig->getp = orig->endp;
- STREAM_VERIFY_SANE(s);
+ STREAM_VERIFY_SANE(orig);
- return s->size;
+ *sptr = orig;
+ return orig->size;
+}
+
+size_t __attribute__((deprecated))stream_resize_orig(struct stream *s,
+ size_t newsize)
+{
+ assert("stream_resize: Switch code to use stream_resize_inplace" == NULL);
+
+ return stream_resize_inplace(&s, newsize);
}
size_t stream_get_getp(struct stream *s)
}
/* Copy from stream to destination. */
-inline bool stream_get2(void *dst, struct stream *s, size_t size)
+bool stream_get2(void *dst, struct stream *s, size_t size)
{
STREAM_VERIFY_SANE(s);
}
/* Get next character from the stream. */
-inline bool stream_getc2(struct stream *s, uint8_t *byte)
+bool stream_getc2(struct stream *s, uint8_t *byte)
{
STREAM_VERIFY_SANE(s);
return c;
}
-inline bool stream_getw2(struct stream *s, uint16_t *word)
+bool stream_getw2(struct stream *s, uint16_t *word)
{
STREAM_VERIFY_SANE(s);
memcpy(dst, s->data + from, size);
}
-inline bool stream_getl2(struct stream *s, uint32_t *l)
+bool stream_getl2(struct stream *s, uint32_t *l)
{
STREAM_VERIFY_SANE(s);
/* Error: was it transient (return -2) or fatal (return -1)? */
if (ERRNO_IO_RETRY(errno))
return -2;
- zlog_warn("%s: read failed on fd %d: %s", __func__, fd,
- safe_strerror(errno));
+ flog_err(EC_LIB_SOCKET, "%s: read failed on fd %d: %s", __func__, fd,
+ safe_strerror(errno));
return -1;
}
/* Error: was it transient (return -2) or fatal (return -1)? */
if (ERRNO_IO_RETRY(errno))
return -2;
- zlog_warn("%s: read failed on fd %d: %s", __func__, fd,
- safe_strerror(errno));
+ flog_err(EC_LIB_SOCKET, "%s: read failed on fd %d: %s", __func__, fd,
+ safe_strerror(errno));
return -1;
}
struct stream_fifo *new;
new = XCALLOC(MTYPE_STREAM_FIFO, sizeof(struct stream_fifo));
+ pthread_mutex_init(&new->mtx, NULL);
return new;
}
/* Add new stream to fifo. */
void stream_fifo_push(struct stream_fifo *fifo, struct stream *s)
{
+#if defined DEV_BUILD
+ size_t max, curmax;
+#endif
+
if (fifo->tail)
fifo->tail->next = s;
else
fifo->tail = s;
fifo->tail->next = NULL;
-
- fifo->count++;
+#if !defined DEV_BUILD
+ atomic_fetch_add_explicit(&fifo->count, 1, memory_order_release);
+#else
+ max = atomic_fetch_add_explicit(&fifo->count, 1, memory_order_release);
+ curmax = atomic_load_explicit(&fifo->max_count, memory_order_relaxed);
+ if (max > curmax)
+ atomic_store_explicit(&fifo->max_count, max,
+ memory_order_relaxed);
+#endif
+}
+
+void stream_fifo_push_safe(struct stream_fifo *fifo, struct stream *s)
+{
+ pthread_mutex_lock(&fifo->mtx);
+ {
+ stream_fifo_push(fifo, s);
+ }
+ pthread_mutex_unlock(&fifo->mtx);
}
/* Delete first stream from fifo. */
if (fifo->head == NULL)
fifo->tail = NULL;
- fifo->count--;
+ atomic_fetch_sub_explicit(&fifo->count, 1,
+ memory_order_release);
/* ensure stream is scrubbed of references to this fifo */
s->next = NULL;
return s;
}
-/* Return first fifo entry. */
+struct stream *stream_fifo_pop_safe(struct stream_fifo *fifo)
+{
+ struct stream *ret;
+
+ pthread_mutex_lock(&fifo->mtx);
+ {
+ ret = stream_fifo_pop(fifo);
+ }
+ pthread_mutex_unlock(&fifo->mtx);
+
+ return ret;
+}
+
struct stream *stream_fifo_head(struct stream_fifo *fifo)
{
return fifo->head;
}
+struct stream *stream_fifo_head_safe(struct stream_fifo *fifo)
+{
+ struct stream *ret;
+
+ pthread_mutex_lock(&fifo->mtx);
+ {
+ ret = stream_fifo_head(fifo);
+ }
+ pthread_mutex_unlock(&fifo->mtx);
+
+ return ret;
+}
+
void stream_fifo_clean(struct stream_fifo *fifo)
{
struct stream *s;
stream_free(s);
}
fifo->head = fifo->tail = NULL;
- fifo->count = 0;
+ atomic_store_explicit(&fifo->count, 0, memory_order_release);
+}
+
+void stream_fifo_clean_safe(struct stream_fifo *fifo)
+{
+ pthread_mutex_lock(&fifo->mtx);
+ {
+ stream_fifo_clean(fifo);
+ }
+ pthread_mutex_unlock(&fifo->mtx);
+}
+
+size_t stream_fifo_count_safe(struct stream_fifo *fifo)
+{
+ return atomic_load_explicit(&fifo->count, memory_order_acquire);
}
void stream_fifo_free(struct stream_fifo *fifo)
{
stream_fifo_clean(fifo);
+ pthread_mutex_destroy(&fifo->mtx);
XFREE(MTYPE_STREAM_FIFO, fifo);
}
projects / mirror_frr.git / blobdiff