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#include <stdlib.h>
#include <string.h>
#include "core.h"
#include "tm.h"
int ecp_timer_create(ECPTimer *timer) {
int rv;
timer->head = -1;
#ifdef ECP_WITH_PTHREAD
rv = pthread_mutex_init(&timer->mutex, NULL);
if (rv) return ECP_ERR;
#endif
return ECP_OK;
}
void ecp_timer_destroy(ECPTimer *timer) {
#ifdef ECP_WITH_PTHREAD
pthread_mutex_destroy(&timer->mutex);
#endif
}
void ecp_timer_item_init(ECPTimerItem *ti, ECPConnection *conn, unsigned char mtype, ecp_timer_retry_t retry_f, unsigned short cnt, ecp_sts_t timeout, void *param) {
ti->conn = conn;
ti->mtype = mtype;
ti->frag_cnt = 0;
ti->retry = retry_f;
ti->cnt = cnt;
ti->timeout = timeout;
ti->abstime = 0;
ti->param = param;
}
void *ecp_timer_get_param(ECPTimerItem *ti) {
return ti->param;
}
int ecp_timer_push(ECPTimerItem *ti) {
ECPConnection *conn = ti->conn;
ECPTimer *timer = &conn->sock->timer;
int i, rv = ECP_OK;
ti->abstime = ecp_tm_get_ms() + ti->timeout;
#ifdef ECP_WITH_PTHREAD
pthread_mutex_lock(&timer->mutex);
#endif
rv = ecp_conn_refcount_inc(conn);
if (rv) {
conn = NULL;
goto timer_push_fin;
}
if (timer->head == ECP_MAX_TIMER-1) {
rv = ECP_ERR_MAX_TIMER;
goto timer_push_fin;
}
for (i=timer->head; i>=0; i--) {
if (ECP_STS_LTE(ti->abstime, timer->item[i].abstime)) {
if (i != timer->head) memmove(timer->item+i+2, timer->item+i+1, sizeof(ECPTimerItem) * (timer->head-i));
timer->item[i+1] = *ti;
timer->head++;
break;
}
}
if (i == -1) {
if (timer->head != -1) memmove(timer->item+1, timer->item, sizeof(ECPTimerItem) * (timer->head+1));
timer->item[0] = *ti;
timer->head++;
}
ecp_tm_timer_set(ti->timeout);
timer_push_fin:
#ifdef ECP_WITH_PTHREAD
pthread_mutex_unlock(&timer->mutex);
#endif
if (rv && conn) {
ecp_conn_refcount_dec(conn);
}
return rv;
}
void ecp_timer_pop(ECPConnection *conn, unsigned char mtype, ecp_seq_t seq, unsigned char frag_cnt, unsigned char frag_tot) {
ECPTimer *timer = &conn->sock->timer;
int i;
#ifdef ECP_WITH_PTHREAD
pthread_mutex_lock(&timer->mutex);
#endif
for (i=timer->head; i>=0; i--) {
ECPConnection *curr_conn = timer->item[i].conn;
if ((conn == curr_conn) && (mtype == timer->item[i].mtype)) {
if (mtype & ECP_MTYPE_FLAG_FRAG) {
int rv;
rv = ECP_OK;
#ifdef ECP_WITH_PTHREAD
pthread_mutex_lock(&conn->mutex);
#endif
if (conn->frag_cnt) {
ecp_seq_t seq_frag = conn->frag_seq + frag_cnt;
if (ECP_SEQ_LT(seq_frag, seq)) {
timer->item[i].frag_cnt = 0;
} else if (seq_frag != seq) {
rv = ECP_ERR_FRAG;
}
}
#ifdef ECP_WITH_PTHREAD
pthread_mutex_unlock(&conn->mutex);
#endif
if (rv) break;
if (timer->item[i].frag_cnt) {
timer->item[i].frag_cnt--;
} else if (frag_tot) {
timer->item[i].frag_cnt = frag_tot - 1;
}
if (timer->item[i].frag_cnt != 0) break;
}
if (i != timer->head) {
memmove(timer->item+i, timer->item+i+1, sizeof(ECPTimerItem) * (timer->head-i));
memset(timer->item+timer->head, 0, sizeof(ECPTimerItem));
} else {
memset(timer->item+i, 0, sizeof(ECPTimerItem));
}
ecp_conn_refcount_dec(conn);
timer->head--;
break;
}
}
#ifdef ECP_WITH_PTHREAD
pthread_mutex_unlock(&timer->mutex);
#endif
}
void ecp_timer_remove(ECPConnection *conn) {
ECPTimer *timer = &conn->sock->timer;
int i;
#ifdef ECP_WITH_PTHREAD
pthread_mutex_lock(&timer->mutex);
#endif
for (i=timer->head; i>=0; i--) {
ECPConnection *curr_conn = timer->item[i].conn;
if (conn == curr_conn) {
if (i != timer->head) {
memmove(timer->item+i, timer->item+i+1, sizeof(ECPTimerItem) * (timer->head-i));
memset(timer->item+timer->head, 0, sizeof(ECPTimerItem));
} else {
memset(timer->item+i, 0, sizeof(ECPTimerItem));
}
ecp_conn_refcount_dec(conn);
timer->head--;
}
}
#ifdef ECP_WITH_PTHREAD
pthread_mutex_unlock(&timer->mutex);
#endif
}
ecp_sts_t ecp_timer_exe(ECPSocket *sock) {
ECPContext *ctx;
ECPTimer *timer = &sock->timer;
ECPTimerItem to_exec[ECP_MAX_TIMER];
ecp_sts_t ret = 0;
ecp_sts_t now = ecp_tm_get_ms();
int to_exec_size = 0;
int i;
ctx = sock->ctx;
#ifdef ECP_WITH_PTHREAD
pthread_mutex_lock(&timer->mutex);
#endif
for (i=timer->head; i>=0; i--) {
ecp_sts_t abstime = timer->item[i].abstime;
if (ECP_STS_LT(now, abstime)) {
ret = abstime - now;
break;
}
to_exec[to_exec_size] = timer->item[i];
to_exec_size++;
}
if (i != timer->head) {
memset(timer->item+i+1, 0, sizeof(ECPTimerItem) * (timer->head-i));
timer->head = i;
}
#ifdef ECP_WITH_PTHREAD
pthread_mutex_unlock(&timer->mutex);
#endif
for (i=to_exec_size-1; i>=0; i--) {
ECPConnection *conn = to_exec[i].conn;
unsigned char mtype = to_exec[i].mtype;
ecp_timer_retry_t retry = to_exec[i].retry;
if (to_exec[i].cnt > 0) {
to_exec[i].cnt--;
to_exec[i].frag_cnt = 0;
if (retry) {
ssize_t rv;
rv = retry(conn, to_exec+i);
if ((rv < 0) && ctx->logger) {
int _rv = rv;
ctx->logger("ecp_timer_exe: retry err:%d\n", _rv);
}
}
} else {
int rv;
rv = ECP_ERR_TIMEOUT;
if (mtype == ECP_MTYPE_OPEN_REP) {
int _rv;
/* remove only if connection is not already open, avoids race condition with open reply message handler */
_rv = _ecp_conn_remove(conn);
if (_rv) rv = ECP_OK;
}
if (rv) {
ecp_err_handle(conn, mtype, rv);
}
}
ecp_conn_refcount_dec(conn);
}
return ret;
}
ssize_t ecp_timer_send(ECPConnection *conn, ecp_timer_retry_t send_f, unsigned char mtype, unsigned short cnt, ecp_sts_t timeout, void *param) {
ECPTimerItem ti;
if (cnt == 0) return ECP_ERR;
ecp_timer_item_init(&ti, conn, mtype, send_f, cnt-1, timeout, param);
return send_f(conn, &ti);
}
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