source: lib/data-struct/message_queue.h @ a49a9eb

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivelibtrace4ndag_formatpfringrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file since a49a9eb was a49a9eb, checked in by Richard Sanger <rsangerarj@…>, 7 years ago

Add an object cache with thread local caches
All packets used by a trace are put through this.
Adds bulk read/write operations to the ringbuffer (used by the object cache)
Replace semaphores with condition variables to support these bulk operations.
Internally use bulk read operations from a single threaded formats to reduce lock overhead.
Replaces the asserts around pthread_* functions with a version that will still run the command if NDEBUG

  • Property mode set to 100644
File size: 863 bytes
Line 
1#include <pthread.h>
2#include <limits.h>
3#include "../libtrace.h"
4
5#ifndef LIBTRACE_MESSAGE_QUEUE
6#define LIBTRACE_MESSAGE_QUEUE
7
8#define LIBTRACE_MQ_FAILED INT_MIN
9typedef struct libtrace_message_queue_t {
10        int pipefd[2];
11        volatile int message_count;
12        size_t message_len;
13        pthread_spinlock_t spin;
14} libtrace_message_queue_t;
15
16void libtrace_message_queue_init(libtrace_message_queue_t *mq, size_t message_len);
17int libtrace_message_queue_put(libtrace_message_queue_t *mq, const void *message);
18int libtrace_message_queue_count(const libtrace_message_queue_t *mq);
19int libtrace_message_queue_get(libtrace_message_queue_t *mq, void *message);
20int libtrace_message_queue_try_get(libtrace_message_queue_t *mq, void *message);
21void libtrace_message_queue_destroy(libtrace_message_queue_t *mq);
22int libtrace_message_queue_get_fd(libtrace_message_queue_t *mq);
23
24#endif
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