Remove variable delay from non_blocking_write and include it whether metadata is enabled or not. Remove the INSTALL file and ignroe it in git.

.gitignore

@@ -1,3 +1,4 @@
+/INSTALL
 /shairport-sync
 /shairport-sync.exe
 /*.o

INSTALL

@@ -1,4 +0,0 @@
-Installation Instructions
-*************************
-
-Please refer to README.md for installation instructions.

common.c

@@ -513,7 +513,6 @@ uint64_t get_absolute_time_in_fp() {
   return time_now_fp;
 }
 
-#ifdef CONFIG_METADATA
 ssize_t non_blocking_write(int fd, const void *buf, size_t count) {
 	void *ibuf = (void *)buf;
 	size_t bytes_remaining = count;
@@ -523,7 +522,7 @@ ssize_t non_blocking_write(int fd, const void *buf, size_t count) {
 		// check that we can do some writing
 		ufds[0].fd = fd;
     ufds[0].events = POLLOUT;
-    rc = poll(ufds, 1, config.metadata_pipe_timeout);
+    rc = poll(ufds, 1, 5000);
     if (rc < 0) {
       // debug(1, "non-blocking write error waiting for pipe to become ready for writing...");
     } else if (rc == 0) {
@@ -546,7 +545,6 @@ ssize_t non_blocking_write(int fd, const void *buf, size_t count) {
 		return rc;
   //  return write(fd,buf,count);
 }
-#endif
 
 /* from http://coding.debuntu.org/c-implementing-str_replace-replace-all-occurrences-substring#comment-722 */
 

common.h

@@ -54,7 +54,6 @@ typedef struct {
   char *service_name; // the name for the shairport service, e.g. "Shairport Sync Version %v running on host %h"
 #ifdef CONFIG_METADATA
   int metadata_enabled;
-  int metadata_pipe_timeout; // in milliseconds
   char *metadata_pipename;
   char *metadata_sockaddr;
   int metadata_sockport;

configure.ac

@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.50])
-AC_INIT([shairport-sync], [2.8.4.1], [mikebrady@eircom.net])
+AC_INIT([shairport-sync], [2.8.4.2], [mikebrady@eircom.net])
 AM_INIT_AUTOMAKE
 AC_CONFIG_SRCDIR([shairport.c])
 AC_CONFIG_HEADERS([config.h])

rtsp.c

@@ -1838,7 +1838,6 @@ void rtsp_listen_loop(void) {
       // strerror(errno));
       continue;
     }
-
     ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes));
 
 #ifdef IPV6_V6ONLY

shairport.c

@@ -490,14 +490,6 @@ int parse_options(int argc, char **argv) {
       if (config_lookup_int(config.cfg, "metadata.socket_msglength", &value)) {
         config.metadata_sockmsglength = value < 500 ? 500 : value > 65000 ? 65000 : value;
       }
-      if (config_lookup_int(config.cfg, "metadata.pipe_timeout", &value)) {
-      
-        if ((value < 1) || (value > 150000))
-          die("Invalid timeout range  \"%sd\". It should be in the range 1 to 150,000 milliseconds.",
-              value);
-        else
-          config.metadata_pipe_timeout = value;
-      }
 
   #endif
 
@@ -763,9 +755,6 @@ int main(int argc, char **argv) {
   //snprintf(config.service_name, 20 + 100, "Shairport Sync on %s", hostname);
   set_requested_connection_state_to_output(1); // we expect to be able to connect to the output device
   config.audio_backend_buffer_desired_length = 6615; // 0.15 seconds.
-#ifdef CONFIG_METADATA
-  config.metadata_pipe_timeout = 5000; //milliseconds
-#endif
   config.udp_port_base = 6001;
   config.udp_port_range = 100;