#ifndef __TRACE_AGENT_H__
#define __TRACE_AGENT_H__
#include <pthread.h>
#include <stdbool.h>

#define MAX_CPUS	256
#define PIPE_INIT       (1024*1024)

/*
 * agent_info - structure managing total information of guest agent
 * @pipe_size:	size of pipe (default 1MB)
 * @use_stdout:	set to true when o option is added (default false)
 * @cpus:	total number of CPUs
 * @ctl_fd:	fd of control path, /dev/virtio-ports/agent-ctl-path
 * @rw_ti:	structure managing information of read/write threads
 */
struct agent_info {
	unsigned long pipe_size;
	bool use_stdout;
	int cpus;
	int ctl_fd;
	struct rw_thread_info *rw_ti[MAX_CPUS];
};

/*
 * rw_thread_info - structure managing a read/write thread a cpu
 * @cpu_num:	cpu number operating this read/write thread
 * @in_fd:	fd of reading trace data path in cpu_num
 * @out_fd:	fd of writing trace data path in cpu_num
 * @read_pipe:	fd of read pipe
 * @write_pipe:	fd of write pipe
 * @pipe_size:	size of pipe (default 1MB)
 */
struct rw_thread_info {
	int cpu_num;
	int in_fd;
	int out_fd;
	int read_pipe;
	int write_pipe;
	unsigned long pipe_size;
};

/* use for stopping rw threads */
extern bool global_sig_receive;

/* use for notification */
extern bool global_run_operation;
extern pthread_mutex_t mutex_notify;
extern pthread_cond_t cond_wakeup;

/* for controller of read/write threads */
extern int rw_ctl_init(const char *ctl_path);
extern void *rw_ctl_loop(int ctl_fd);

/* for trace read/write thread */
extern void *rw_thread_info_new(void);
extern void *rw_thread_init(int cpu, const char *in_path, const char *out_path,
			bool stdout_flag, unsigned long pipe_size,
			struct rw_thread_info *rw_ti);
extern pthread_t rw_thread_run(struct rw_thread_info *rw_ti);

static inline void *zalloc(size_t size)
{
	return calloc(1, size);
}

#define pr_err(format, ...) fprintf(stderr, format, ## __VA_ARGS__)
#define pr_info(format, ...) fprintf(stdout, format, ## __VA_ARGS__)
#ifdef DEBUG
#define pr_debug(format, ...) fprintf(stderr, format, ## __VA_ARGS__)
#else
#define pr_debug(format, ...) do {} while (0)
#endif

#endif /*__TRACE_AGENT_H__*/
ght' method='get' action='/cgit.cgi/linux/net-next.git/log/include/dt-bindings/sound'>
<input type='hidden' name='id' value='a6a3e026f0d358904afd3df6b7f952ed8ea5b942'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=a6a3e026f0d358904afd3df6b7f952ed8ea5b942'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/include?id=a6a3e026f0d358904afd3df6b7f952ed8ea5b942'>include</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/dt-bindings?id=a6a3e026f0d358904afd3df6b7f952ed8ea5b942'>dt-bindings</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/dt-bindings/sound?id=a6a3e026f0d358904afd3df6b7f952ed8ea5b942'>sound</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/include/dt-bindings/sound?id=a6a3e026f0d358904afd3df6b7f952ed8ea5b942&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>