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db.c
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db.c
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#include "db.h"
#include <errno.h>
#include <mysql.h>
#include <glib.h>
#include <string.h>
#include <sys/time.h>
#include "types.h"
#include "main.h"
#include "log.h"
#include "tag.h"
#include "recaux.h"
/*
CREATE TABLE `recording_calls` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`call_id` varchar(250) NOT NULL,
`start_timestamp` decimal(13,3) DEFAULT NULL,
`end_timestamp` decimal(13,3) DEFAULT NULL,
`status` enum('recording','completed','confirmed') DEFAULT 'recording',
PRIMARY KEY (`id`),
KEY `call_id` (`call_id`)
);
CREATE TABLE `recording_streams` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`call` int(10) unsigned NOT NULL,
`local_filename` varchar(250) NOT NULL,
`full_filename` varchar(250) NOT NULL,
`file_format` varchar(10) NOT NULL,
`stream` mediumblob,
`output_type` enum('mixed','single') NOT NULL,
`stream_id` int(10) unsigned NOT NULL,
`sample_rate` int(10) unsigned NOT NULL DEFAULT '0',
`channels` int(10) unsigned NOT NULL DEFAULT '0',
`ssrc` int(10) unsigned NOT NULL,
`start_timestamp` decimal(13,3) DEFAULT NULL,
`end_timestamp` decimal(13,3) DEFAULT NULL,
`tag_label` varchar(255) NOT NULL DEFAULT '',
PRIMARY KEY (`id`),
KEY `call` (`call`),
CONSTRAINT `fk_call_id` FOREIGN KEY (`call`) REFERENCES `recording_calls` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
);
CREATE TABLE `recording_metakeys` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`call` int(10) unsigned NOT NULL,
`key` char(255) NOT NULL,
`value` char(255) NOT NULL,
PRIMARY KEY (`id`),
KEY `prim_lookup` (`value`,`key`),
KEY `fk_call_idx` (`call`),
CONSTRAINT `fk_call_idx` FOREIGN KEY (`call`) REFERENCES `recording_calls` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
);
*/
static __thread MYSQL *mysql_conn;
static __thread MYSQL_STMT
*stm_insert_call,
*stm_close_call,
*stm_delete_call,
*stm_insert_stream,
*stm_close_stream,
*stm_delete_stream,
*stm_config_stream,
*stm_insert_metadata;
static void my_stmt_close(MYSQL_STMT **st) {
if (!*st)
return;
mysql_stmt_close(*st);
*st = NULL;
}
static void reset_conn(void) {
my_stmt_close(&stm_insert_call);
my_stmt_close(&stm_close_call);
my_stmt_close(&stm_delete_call);
my_stmt_close(&stm_insert_stream);
my_stmt_close(&stm_close_stream);
my_stmt_close(&stm_delete_stream);
my_stmt_close(&stm_config_stream);
my_stmt_close(&stm_insert_metadata);
mysql_close(mysql_conn);
mysql_conn = NULL;
}
INLINE int prep(MYSQL_STMT **st, const char *s) {
*st = mysql_stmt_init(mysql_conn);
if (!*st)
return -1;
if (mysql_stmt_prepare(*st, s, strlen(s))) {
ilog(LOG_ERR, "Failed to prepare statement '%s': %s", s, mysql_stmt_error(*st));
return -1;
}
return 0;
}
static int check_conn(void) {
if (mysql_conn)
return 0;
if (!c_mysql_host || !c_mysql_db)
return -1;
dbg("connecting to MySQL");
mysql_conn = mysql_init(NULL);
if (!mysql_conn)
goto err;
if (!mysql_real_connect(mysql_conn, c_mysql_host, c_mysql_user, c_mysql_pass, c_mysql_db, c_mysql_port,
NULL, CLIENT_IGNORE_SIGPIPE))
goto err;
if (mysql_select_db(mysql_conn, c_mysql_db))
goto err;
if (mysql_autocommit(mysql_conn, 0))
goto err;
if (prep(&stm_insert_call, "insert into recording_calls (call_id, start_timestamp, " \
"`status`) " \
"values " \
"(?,?,'recording')"))
goto err;
if (prep(&stm_insert_stream, "insert into recording_streams (`call`, local_filename, full_filename, " \
"file_format, " \
"output_type, " \
"stream_id, ssrc, " \
"tag_label, " \
"start_timestamp) values " \
"(?,concat(?,'.',?),concat(?,'.',?),?,?,?,?,?,?)"))
goto err;
if (prep(&stm_close_call, "update recording_calls set " \
"end_timestamp = ?, status = 'completed' where id = ? " \
"and status != 'completed'"))
goto err;
if (prep(&stm_delete_call, "delete from recording_calls where id = ?"))
goto err;
if ((output_storage & OUTPUT_STORAGE_DB)) {
if (prep(&stm_close_stream, "update recording_streams set " \
"end_timestamp = ?, stream = ? where id = ?"))
goto err;
}
else {
if (prep(&stm_close_stream, "update recording_streams set " \
"end_timestamp = ? where id = ?"))
goto err;
}
if (prep(&stm_delete_stream, "delete from recording_streams where id = ?"))
goto err;
if (prep(&stm_config_stream, "update recording_streams set channels = ?, sample_rate = ? where id = ?"))
goto err;
if (prep(&stm_insert_metadata, "insert into recording_metakeys (`call`, `key`, `value`) values " \
"(?,?,?)"))
goto err;
dbg("Connection to MySQL established");
return 0;
err:
if (mysql_conn) {
ilog(LOG_ERR, "Failed to connect to MySQL: %s", mysql_error(mysql_conn));
reset_conn();
}
else
ilog(LOG_ERR, "Failed to connect to MySQL: out of memory");
return -1;
}
INLINE void my_str_len(MYSQL_BIND *b, const char *s, unsigned int len) {
*b = (MYSQL_BIND) {
.buffer_type = MYSQL_TYPE_STRING,
.buffer = (void *) s,
.buffer_length = len,
.length = &b->buffer_length,
};
}
INLINE void my_str(MYSQL_BIND *b, const str *s) {
my_str_len(b, s->s, s->len);
}
INLINE void my_cstr(MYSQL_BIND *b, const char *s) {
my_str_len(b, s, strlen(s));
}
INLINE void my_ull(MYSQL_BIND *b, const unsigned long long *ull) {
*b = (MYSQL_BIND) {
.buffer_type = MYSQL_TYPE_LONGLONG,
.buffer = (void *) ull,
.buffer_length = sizeof(*ull),
.is_unsigned = 1,
};
}
INLINE void my_i(MYSQL_BIND *b, const int *i) {
*b = (MYSQL_BIND) {
.buffer_type = MYSQL_TYPE_LONG,
.buffer = (void *) i,
.buffer_length = sizeof(*i),
.is_unsigned = 0,
};
}
INLINE void my_d(MYSQL_BIND *b, const double *d) {
*b = (MYSQL_BIND) {
.buffer_type = MYSQL_TYPE_DOUBLE,
.buffer = (void *) d,
.buffer_length = sizeof(*d),
.is_unsigned = 0,
};
}
static void execute_wrap(MYSQL_STMT **stmt, MYSQL_BIND *binds, unsigned long long *auto_id) {
int retr = 0;
while (1) {
if (check_conn())
goto err;
if (mysql_stmt_bind_param(*stmt, binds))
goto err;
if (mysql_stmt_execute(*stmt))
goto err;
if (auto_id) {
*auto_id = mysql_insert_id(mysql_conn);
if (*auto_id == 0)
goto err;
}
if (mysql_commit(mysql_conn))
goto err;
return;
err:
if (retr > 5) {
// fatal
ilog(LOG_ERR, "Failed to bind or execute prepared statement: %s",
mysql_stmt_error(*stmt));
reset_conn();
return;
}
if (retr > 2) {
reset_conn();
if (check_conn())
return;
}
retr++;
}
}
static void db_do_call_id(metafile_t *mf) {
if (mf->db_id > 0)
return;
if (!mf->call_id)
return;
if (mf->skip_db)
return;
MYSQL_BIND b[2];
my_cstr(&b[0], mf->call_id);
my_d(&b[1], &mf->start_time);
execute_wrap(&stm_insert_call, b, &mf->db_id);
}
static void db_do_call_metadata(metafile_t *mf) {
if (mf->db_metadata_done)
return;
if (mf->db_id == 0)
return;
if (mf->skip_db)
return;
MYSQL_BIND b[3];
my_ull(&b[0], &mf->db_id); // stays persistent
metadata_ht_iter iter;
t_hash_table_iter_init(&iter, mf->metadata_parsed);
str *key;
str_q *vals;
while (t_hash_table_iter_next(&iter, &key, &vals)) {
for (__auto_type l = vals->head; l; l = l->next) {
my_str(&b[1], key);
my_str(&b[2], l->data);
execute_wrap(&stm_insert_metadata, b, NULL);
}
}
mf->db_metadata_done = 1;
}
void db_do_call(metafile_t *mf) {
if (check_conn())
return;
db_do_call_id(mf);
db_do_call_metadata(mf);
}
// mf is locked
void db_do_stream(metafile_t *mf, output_t *op, stream_t *stream, unsigned long ssrc) {
if (check_conn())
return;
if (mf->db_id == 0)
return;
if (op->db_id > 0)
return;
if (mf->skip_db)
return;
unsigned long id = stream ? stream->id : 0;
MYSQL_BIND b[11];
my_ull(&b[0], &mf->db_id);
my_cstr(&b[1], op->file_name);
my_cstr(&b[2], op->file_format);
my_cstr(&b[3], op->full_filename);
my_cstr(&b[4], op->file_format);
my_cstr(&b[5], op->file_format);
my_cstr(&b[6], op->kind);
b[7] = (MYSQL_BIND) {
.buffer_type = MYSQL_TYPE_LONG,
.buffer = &id,
.buffer_length = sizeof(id),
.is_unsigned = 1,
};
b[8] = (MYSQL_BIND) {
.buffer_type = MYSQL_TYPE_LONG,
.buffer = &ssrc,
.buffer_length = sizeof(ssrc),
.is_unsigned = 1,
};
if (stream && stream->tag != (unsigned long) -1) {
tag_t *tag = tag_get(mf, stream->tag);
my_cstr(&b[9], tag->label ? : "");
}
else
my_cstr(&b[9], "");
my_d(&b[10], &op->start_time);
execute_wrap(&stm_insert_stream, b, &op->db_id);
if (op->db_id > 0)
mf->db_streams++;
}
void db_close_call(metafile_t *mf) {
if (check_conn())
return;
if (mf->db_id == 0)
return;
double now = now_double();
MYSQL_BIND b[2];
if (mf->db_streams > 0) {
my_d(&b[0], &now);
my_ull(&b[1], &mf->db_id);
execute_wrap(&stm_close_call, b, NULL);
}
else {
my_ull(&b[0], &mf->db_id);
execute_wrap(&stm_delete_call, b, NULL);
mf->db_id = 0;
}
}
void db_close_stream(output_t *op) {
if (check_conn())
return;
if (op->db_id == 0)
return;
double now = now_double();
str stream;
MYSQL_BIND b[3];
stream.s = 0;
stream.len = 0;
if ((output_storage & OUTPUT_STORAGE_DB)) {
FILE *f = fopen(op->filename, "rb");
if (!f) {
ilog(LOG_ERR, "Failed to open file: %s%s%s", FMT_M(op->filename));
if ((output_storage & OUTPUT_STORAGE_FILE))
goto file;
return;
}
fseek(f, 0, SEEK_END);
long pos = ftell(f);
if (pos < 0) {
ilog(LOG_ERR, "Failed to get file position: %s", strerror(errno));
fclose(f);
if ((output_storage & OUTPUT_STORAGE_FILE))
goto file;
return;
}
stream.len = pos;
fseek(f, 0, SEEK_SET);
stream.s = malloc(stream.len);
if (stream.s) {
size_t count = fread(stream.s, 1, stream.len, f);
if (count != stream.len) {
stream.len = 0;
ilog(LOG_ERR, "Failed to read from stream");
fclose(f);
if ((output_storage & OUTPUT_STORAGE_FILE))
goto file;
free(stream.s);
return;
}
}
fclose(f);
}
file:;
int par_idx = 0;
my_d(&b[par_idx++], &now);
if ((output_storage & OUTPUT_STORAGE_DB))
my_str(&b[par_idx++], &stream);
my_ull(&b[par_idx++], &op->db_id);
execute_wrap(&stm_close_stream, b, NULL);
if (stream.s)
free(stream.s);
if (!(output_storage & OUTPUT_STORAGE_FILE))
if (unlink(op->filename))
ilog(LOG_ERR, "Failed to delete file '%s': %s", op->filename, strerror(errno));
}
void db_delete_stream(metafile_t *mf, output_t *op) {
if (check_conn())
return;
if (op->db_id == 0)
return;
MYSQL_BIND b[1];
my_ull(&b[0], &op->db_id);
execute_wrap(&stm_delete_stream, b, NULL);
mf->db_streams--;
}
void db_config_stream(output_t *op) {
if (check_conn())
return;
if (op->db_id == 0)
return;
MYSQL_BIND b[3];
my_i(&b[0], &op->encoder->actual_format.channels);
my_i(&b[1], &op->encoder->actual_format.clockrate);
my_ull(&b[2], &op->db_id);
execute_wrap(&stm_config_stream, b, NULL);
}
void db_thread_end(void) {
reset_conn();
}