162 lines
4.7 KiB
C
162 lines
4.7 KiB
C
/* Main SPOA server includes
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*
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* Copyright 2016 HAProxy Technologies, Christopher Faulet <cfaulet@haproxy.com>
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* Copyright 2018 OZON / Thierry Fournier <thierry.fournier@ozon.io>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef __SPOA_H__
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#define __SPOA_H__
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#include <pthread.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <netinet/in.h>
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#include <sys/time.h>
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#define MAX_FRAME_SIZE 16384
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#define SPOP_VERSION "1.0"
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#define SPOA_CAPABILITIES ""
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/* All supported data types */
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enum spoe_data_type {
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SPOE_DATA_T_NULL = 0,
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SPOE_DATA_T_BOOL,
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SPOE_DATA_T_INT32,
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SPOE_DATA_T_UINT32,
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SPOE_DATA_T_INT64,
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SPOE_DATA_T_UINT64,
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SPOE_DATA_T_IPV4,
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SPOE_DATA_T_IPV6,
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SPOE_DATA_T_STR,
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SPOE_DATA_T_BIN,
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SPOE_DATA_TYPES
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};
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/* Scopes used for variables set by agents. It is a way to be agnotic to vars
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* scope. */
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enum spoe_vars_scope {
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SPOE_SCOPE_PROC = 0, /* <=> SCOPE_PROC */
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SPOE_SCOPE_SESS, /* <=> SCOPE_SESS */
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SPOE_SCOPE_TXN, /* <=> SCOPE_TXN */
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SPOE_SCOPE_REQ, /* <=> SCOPE_REQ */
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SPOE_SCOPE_RES, /* <=> SCOPE_RES */
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};
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struct worker {
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unsigned int id;
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char buf[MAX_FRAME_SIZE];
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unsigned int len;
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unsigned int size;
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int status_code;
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unsigned int stream_id;
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unsigned int frame_id;
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bool healthcheck;
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char ack[MAX_FRAME_SIZE];
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unsigned int ack_len;
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};
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struct chunk {
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char *str; /* beginning of the string itself. Might not be 0-terminated */
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int len; /* current size of the string from first to last char */
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};
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union spoe_value {
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bool boolean; /* use for boolean */
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int32_t sint32; /* used for signed 32bits integers */
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uint32_t uint32; /* used for signed 32bits integers */
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int32_t sint64; /* used for signed 64bits integers */
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uint32_t uint64; /* used for signed 64bits integers */
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struct in_addr ipv4; /* used for ipv4 addresses */
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struct in6_addr ipv6; /* used for ipv6 addresses */
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struct chunk buffer; /* used for char strings or buffers */
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};
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/* Used to store sample constant */
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struct spoe_data {
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enum spoe_data_type type; /* SPOE_DATA_T_* */
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union spoe_value u; /* spoe data value */
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};
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struct spoe_kv {
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struct chunk name;
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struct spoe_data value;
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};
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struct ps {
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struct ps *next;
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char *ext;
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int (*init_worker)(struct worker *w);
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int (*exec_message)(struct worker *w, void *ref, int nargs, struct spoe_kv *args);
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int (*load_file)(struct worker *w, const char *file);
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};
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struct ps_message {
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struct ps_message *next;
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const char *name;
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struct ps *ps;
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void *ref;
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};
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extern bool debug;
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extern pthread_key_t worker_id;
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void ps_register(struct ps *ps);
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void ps_register_message(struct ps *ps, const char *name, void *ref);
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int set_var_null(struct worker *w,
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const char *name, int name_len,
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unsigned char scope);
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int set_var_bool(struct worker *w,
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const char *name, int name_len,
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unsigned char scope, bool value);
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int set_var_uint32(struct worker *w,
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const char *name, int name_len,
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unsigned char scope, uint32_t value);
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int set_var_int32(struct worker *w,
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const char *name, int name_len,
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unsigned char scope, int32_t value);
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int set_var_uint64(struct worker *w,
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const char *name, int name_len,
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unsigned char scope, uint64_t value);
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int set_var_int64(struct worker *w,
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const char *name, int name_len,
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unsigned char scope, int64_t value);
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int set_var_ipv4(struct worker *w,
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const char *name, int name_len,
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unsigned char scope,
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struct in_addr *ipv4);
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int set_var_ipv6(struct worker *w,
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const char *name, int name_len,
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unsigned char scope,
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struct in6_addr *ipv6);
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int set_var_string(struct worker *w,
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const char *name, int name_len,
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unsigned char scope,
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const char *str, int strlen);
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int set_var_bin(struct worker *w,
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const char *name, int name_len,
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unsigned char scope,
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const char *str, int strlen);
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#define LOG(fmt, args...) \
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do { \
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struct timeval now; \
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int wid = *((int*)pthread_getspecific(worker_id)); \
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\
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gettimeofday(&now, NULL); \
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fprintf(stderr, "%ld.%06ld [%02d] " fmt "\n", \
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now.tv_sec, now.tv_usec, wid, ##args); \
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} while (0)
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#define DEBUG(x...) \
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do { \
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if (debug) \
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LOG(x); \
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} while (0)
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#endif /* __SPOA_H__ */
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