65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
////////////////////////////////////////
|
|
// SKYSQL Backend
|
|
// By Massimiliano Pinto 2012
|
|
// SkySQL AB
|
|
////////////////////////////////////////
|
|
|
|
#include "skysql_gw.h"
|
|
|
|
#define SKYSQL_READ 0
|
|
#define SKYSQL_WRITE 1
|
|
|
|
int skysql_query_is_select(const char *query) {
|
|
|
|
return SKYSQL_READ;
|
|
}
|
|
|
|
int skysql_ext_file_ver(void) {
|
|
int ret = 13;
|
|
return ret;
|
|
}
|
|
|
|
int select_random_slave_server(int nslaves) {
|
|
int random_balancer = (int) ((nslaves) * (rand() / (RAND_MAX + 1.0)));
|
|
return random_balancer;
|
|
}
|
|
|
|
int get_server_from_list(char **selected_host, int *selected_port, char *server_list, int num, apr_pool_t *p) {
|
|
int ret = -1;
|
|
int curr_srv = 0;
|
|
char *next = NULL;
|
|
char *tmp = NULL;
|
|
int port;
|
|
|
|
if (num == 0) {
|
|
port = atoi(strchr(server_list, ':') + 1), sizeof(port);
|
|
memcpy(selected_port, &port, sizeof(int));
|
|
*selected_host = apr_pstrndup(p, server_list, strchr(server_list, ':') - server_list);
|
|
|
|
return 1;
|
|
}
|
|
|
|
next = server_list;
|
|
|
|
while (curr_srv < num) {
|
|
tmp = strchr(next, ',');
|
|
if (tmp != NULL) {
|
|
curr_srv++;
|
|
next = tmp+1;
|
|
} else {
|
|
return -1;
|
|
}
|
|
|
|
if (curr_srv == num) {
|
|
port = atoi(strchr(next, ':') + 1);
|
|
memcpy(selected_port, &port, sizeof(port));
|
|
*selected_host = apr_pstrndup(p, next, strchr(next, ':') - next);
|
|
ret = 0;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|