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VFS: Add debugging outputs for select() related functions

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This commit is contained in:
Roland Dobai
2018-05-29 11:01:25 +02:00
parent ec0d4bd85f
commit bdbcc492cf
3 changed files with 116 additions and 3 deletions
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38
components/newlib/select.c
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@@ -18,12 +18,46 @@
#ifdef CONFIG_USE_ONLY_LWIP_SELECT
#include "lwip/sockets.h"
#endif
#ifdef CONFIG_SUPPRESS_SELECT_DEBUG_OUTPUT
#define LOG_LOCAL_LEVEL ESP_LOG_NONE
#endif //CONFIG_SUPPRESS_SELECT_DEBUG_OUTPUT
#include "esp_log.h"
static const char *TAG = "newlib_select";
static void log_fd_set(const char *fds_name, const fd_set *fds)
{
if (fds_name && fds) {
ESP_LOGD(TAG, "FDs in %s =", fds_name);
for (int i = 0; i < MAX_FDS; ++i) {
if (FD_ISSET(i, fds)) {
ESP_LOGD(TAG, "%d", i);
}
}
}
}
#endif //CONFIG_USE_ONLY_LWIP_SELECT
int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *errorfds, struct timeval *timeout)
{
#ifdef CONFIG_USE_ONLY_LWIP_SELECT
return lwip_select(nfds, readfds, writefds, errorfds, timeout);
ESP_LOGD(TAG, "lwip_select starts with nfds = %d", nfds);
if (timeout) {
ESP_LOGD(TAG, "timeout is %lds + %ldus", timeout->tv_sec, timeout->tv_usec);
}
log_fd_set("readfds", readfds);
log_fd_set("writefds", writefds);
log_fd_set("errorfds", errorfds);
int ret = lwip_select(nfds, readfds, writefds, errorfds, timeout);
ESP_LOGD(TAG, "lwip_select returns %d", ret);
log_fd_set("readfds", readfds);
log_fd_set("writefds", writefds);
log_fd_set("errorfds", errorfds);
return ret;
#else
return esp_vfs_select(nfds, readfds, writefds, errorfds, timeout);
#endif