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add size check to write

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some more debug output
This commit is contained in:
Markus Sattler 2015-04-06 18:41:44 +02:00
parent be6b8f8a2d
commit 96ec8e480b
1 changed files with 10 additions and 2 deletions
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12
libraries/ESP8266WiFi/src/include/ClientContext.h
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@ -182,14 +182,22 @@ public:
size_t write(const char* data, size_t size) size_t write(const char* data, size_t size)
{ {
if (!_pcb) if (!_pcb) {
DEBUGV(":wr !_pcb\r\n");
return 0; return 0;
}
if(size == 0) {
return 0;
}
size_t room = tcp_sndbuf(_pcb); size_t room = tcp_sndbuf(_pcb);
size_t will_send = (room < size) ? room : size; size_t will_send = (room < size) ? room : size;
err_t err = tcp_write(_pcb, data, will_send, 0); err_t err = tcp_write(_pcb, data, will_send, 0);
if (err != ERR_OK) if (err != ERR_OK) {
DEBUGV(":wr !ERR_OK\r\n");
return 0; return 0;
}
_size_sent = will_send; _size_sent = will_send;
DEBUGV(":wr\r\n"); DEBUGV(":wr\r\n");