bugfix: windows does not support ngx_http_lua_ffi_worker_pids.

Author: zhuizhuhaomeng

.travis.yml

@@ -65,6 +65,7 @@ before_install:
   - '! grep -n -P ''(?<=.{80}).+'' --color `find src -name ''*.c''` `find . -name ''*.h''` || (echo "ERROR: Found C source lines exceeding 80 columns." > /dev/stderr; exit 1)'
   - '! grep -n -P ''\t+'' --color `find src -name ''*.c''` `find . -name ''*.h''` || (echo "ERROR: Cannot use tabs." > /dev/stderr; exit 1)'
   - /usr/bin/env perl $(command -v cpanm) --sudo --notest Test::Nginx IPC::Run > build.log 2>&1 || (cat build.log && exit 1)
+  - pyenv global 2.7
 install:
   - if [ ! -f download-cache/drizzle7-$DRIZZLE_VER.tar.gz ]; then wget -P download-cache http://openresty.org/download/drizzle7-$DRIZZLE_VER.tar.gz; fi
   - if [ ! -f download-cache/pcre-$PCRE_VER.tar.gz ]; then wget -P download-cache https://downloads.sourceforge.net/project/pcre/pcre/${PCRE_VER}/pcre-${PCRE_VER}.tar.gz; fi

src/ngx_http_lua_socket_tcp.c

@@ -6483,7 +6483,7 @@ ngx_http_lua_ffi_socket_tcp_getoption(ngx_http_lua_socket_tcp_upstream_t *u,
 
     fd = u->peer.connection->fd;
 
-    if (fd == (ngx_socket_t) -1) {
+    if (fd == (int) -1) {
         *errlen = ngx_snprintf(err, *errlen, "invalid socket fd") - err;
         return NGX_ERROR;
     }
@@ -6540,7 +6540,7 @@ ngx_http_lua_ffi_socket_tcp_setoption(ngx_http_lua_socket_tcp_upstream_t *u,
 
     fd = u->peer.connection->fd;
 
-    if (fd == (ngx_socket_t) -1) {
+    if (fd == (int) -1) {
         *errlen = ngx_snprintf(err, *errlen, "invalid socket fd") - err;
         return NGX_ERROR;
     }
@@ -6601,7 +6601,7 @@ ngx_http_lua_ffi_socket_tcp_hack_fd(ngx_http_lua_socket_tcp_upstream_t *u,
     }
 
     rc = u->peer.connection->fd;
-    if (rc == (ngx_socket_t) -1) {
+    if (rc == (int) -1) {
         *errlen = ngx_snprintf(err, *errlen, "invalid socket fd") - err;
         return -1;
     }

src/ngx_http_lua_worker.c

@@ -8,7 +8,10 @@
 #define DDEBUG 0
 #endif
 #include "ddebug.h"
+
+#if !(NGX_WIN32)
 #include <ngx_channel.h>
+#endif
 
 
 #define NGX_PROCESS_PRIVILEGED_AGENT    99
@@ -21,13 +24,15 @@ ngx_http_lua_ffi_worker_pid(void)
 }
 
 
+#if !(NGX_WIN32)
 int
 ngx_http_lua_ffi_worker_pids(int *pids, size_t *pids_len)
 {
-    ngx_int_t i, n;
+    size_t    n;
+    ngx_int_t i;
 
     n = 0;
-    for (i = 0; i < NGX_MAX_PROCESSES; i++) {
+    for (i = 0; n < *pids_len && i < NGX_MAX_PROCESSES; i++) {
         if (i != ngx_process_slot && ngx_processes[i].pid == 0) {
             break;
         }
@@ -49,6 +54,7 @@ ngx_http_lua_ffi_worker_pids(int *pids, size_t *pids_len)
 
     return NGX_OK;
 }
+#endif
 
 
 int