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Merge branch 'bugfix/fix_transport_ssl_blocking_v4.1' into 'release/v4.1'

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transport: fix transport ssl blocking (v4.1)

See merge request espressif/esp-idf!10692
This commit is contained in:
David Čermák 2020-10-12 21:42:16 +08:00
commit d94867aaac
1 changed files with 7 additions and 4 deletions
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11
components/tcp_transport/transport_ssl.c
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@ -86,6 +86,7 @@ static int ssl_poll_read(esp_transport_handle_t t, int timeout_ms)
{
transport_ssl_t *ssl = esp_transport_get_context_data(t);
int ret = -1;
int remain = 0;
struct timeval timeout;
fd_set readset;
fd_set errset;
@ -94,6 +95,10 @@ static int ssl_poll_read(esp_transport_handle_t t, int timeout_ms)
FD_SET(ssl->tls->sockfd, &readset);
FD_SET(ssl->tls->sockfd, &errset);
if ((remain = esp_tls_get_bytes_avail(ssl->tls)) > 0) {
ESP_LOGD(TAG, "remain data in cache, need to read again");
return remain;
}
ret = select(ssl->tls->sockfd + 1, &readset, NULL, &errset, esp_transport_utils_ms_to_timeval(timeout_ms, &timeout));
if (ret > 0 && FD_ISSET(ssl->tls->sockfd, &errset)) {
int sock_errno = 0;
@ -149,10 +154,8 @@ static int ssl_read(esp_transport_handle_t t, char *buffer, int len, int timeout
int poll, ret;
transport_ssl_t *ssl = esp_transport_get_context_data(t);
if (esp_tls_get_bytes_avail(ssl->tls) <= 0) {
if ((poll = esp_transport_poll_read(t, timeout_ms)) <= 0) {
return poll;
}
if ((poll = esp_transport_poll_read(t, timeout_ms)) <= 0) {
return poll;
}
ret = esp_tls_conn_read(ssl->tls, (unsigned char *)buffer, len);
if (ret < 0) {