odyssey/sources/pid.h

#ifndef ODYSSEY_PID_H
#define ODYSSEY_PID_H

/*
 * Odyssey.
 *
 * Scalable PostgreSQL connection pooler.
 */

typedef struct od_pid od_pid_t;

struct od_pid {
	pid_t pid;
	char pid_sz[16];
	int pid_len;
};

void od_pid_init(od_pid_t *);
int od_pid_create(od_pid_t *, char *);
int od_pid_unlink(od_pid_t *, char *);

#define OD_SIG_LOG_ROTATE SIGUSR1
#define OD_SIG_GRACEFUL_SHUTDOWN SIGUSR2

#endif /* ODYSSEY_PID_H */
odyssey: major io rework and refactoring This patch moves Odyssey from stream based write caching to message driven. All write operations are delayed and happen on a group of messages. This removes necessity to do IO and wait for write completion during calls from SSL_write() context. Write timings should behave more predictable now and number of used syscalls should be also decreased. This patch also simplifies caching management. All clients are simply reusing cached messages without prolonged contention. Several configuration options are no longer used: pipeline, cache, cache_chunk 2018-08-28 14:43:46 +00:00			`#ifndef ODYSSEY_PID_H`
			`#define ODYSSEY_PID_H`
odissey: begin reconstruction for new arch 2017-05-24 11:57:15 +00:00
			`/*`
odyssey: project rename 2018-03-12 14:03:15 +00:00			`* Odyssey.`
odissey: begin reconstruction for new arch 2017-05-24 11:57:15 +00:00			`*`
odyssey: update source file headers 2018-04-04 13:19:58 +00:00			`* Scalable PostgreSQL connection pooler.`
Applying clang-format with saving indentations (#140) * applying clang-format with saving indentations * rebase 2020-04-02 11:00:56 +00:00			`*/`
odissey: begin reconstruction for new arch 2017-05-24 11:57:15 +00:00
			`typedef struct od_pid od_pid_t;`

change formatting (#250) Co-authored-by: reshke <Kirill Reshke> 2020-12-28 10:43:31 +00:00			`struct od_pid {`
odissey: begin reconstruction for new arch 2017-05-24 11:57:15 +00:00			`pid_t pid;`
Applying clang-format with saving indentations (#140) * applying clang-format with saving indentations * rebase 2020-04-02 11:00:56 +00:00			`char pid_sz[16];`
			`int pid_len;`
odissey: begin reconstruction for new arch 2017-05-24 11:57:15 +00:00			`};`

change formatting (#250) Co-authored-by: reshke <Kirill Reshke> 2020-12-28 10:43:31 +00:00			`void od_pid_init(od_pid_t *);`
			`int od_pid_create(od_pid_t , char );`
			`int od_pid_unlink(od_pid_t , char );`
odissey: begin reconstruction for new arch 2017-05-24 11:57:15 +00:00
change formatting (#250) Co-authored-by: reshke <Kirill Reshke> 2020-12-28 10:43:31 +00:00			`#define OD_SIG_LOG_ROTATE SIGUSR1`
use SO_REUSEPORT to graceful shutdown 2020-07-26 07:58:15 +00:00			`#define OD_SIG_GRACEFUL_SHUTDOWN SIGUSR2`

odyssey: major io rework and refactoring This patch moves Odyssey from stream based write caching to message driven. All write operations are delayed and happen on a group of messages. This removes necessity to do IO and wait for write completion during calls from SSL_write() context. Write timings should behave more predictable now and number of used syscalls should be also decreased. This patch also simplifies caching management. All clients are simply reusing cached messages without prolonged contention. Several configuration options are no longer used: pipeline, cache, cache_chunk 2018-08-28 14:43:46 +00:00			`#endif /* ODYSSEY_PID_H */`