Fixes the curl tests to be more reliable in Travis CI

1. Increases the amount of time for the PHP built-in server to accept a connection
2. Outputs an error if the PHP built-in server fails
3. In bug48203_multi.phpt the test no longer starts and stops multiple PHP built-in servers

Author: mhagstrand

ext/curl/tests/bug48203_multi.phpt

@@ -10,7 +10,7 @@ if(substr(PHP_OS, 0, 3) == 'WIN' ) {
 --FILE--
 <?php
 include 'server.inc';
-function checkForClosedFilePointer($curl_option, $description) {
+function checkForClosedFilePointer($target_url, $curl_option, $description) {
 	$fp = fopen(dirname(__FILE__) . '/bug48203.tmp', 'w');
 
 	$ch1 = curl_init();
@@ -19,7 +19,7 @@ function checkForClosedFilePointer($curl_option, $description) {
 	$options = array(
 		CURLOPT_RETURNTRANSFER => 1,
 		$curl_option => $fp,
-		CURLOPT_URL => curl_cli_server_start()
+		CURLOPT_URL => $target_url,
 	);
 
 	// we also need to set CURLOPT_VERBOSE to test CURLOPT_STDERR properly
@@ -57,8 +57,9 @@ $options_to_check = array(
 	"CURLOPT_STDERR", "CURLOPT_WRITEHEADER", "CURLOPT_FILE", "CURLOPT_INFILE"
 );
 
+$target_url = curl_cli_server_start();
 foreach($options_to_check as $option) {
-	checkForClosedFilePointer(constant($option), $option);
+	checkForClosedFilePointer($target_url, constant($option), $option);
 }
 
 ?>
@@ -85,3 +86,4 @@ Warning: curl_multi_exec(): CURLOPT_INFILE resource has gone away, resetting to
 
 Warning: curl_multi_exec(): CURLOPT_INFILE resource has gone away, resetting to default in %sbug48203_multi.php on line 36
 Ok for CURLOPT_INFILE
+

ext/curl/tests/server.inc

@@ -9,48 +9,64 @@ function curl_cli_server_start() {
         return getenv('PHP_CURL_HTTP_REMOTE_SERVER');
     }
 
-	$php_executable = getenv('TEST_PHP_EXECUTABLE');
-	$doc_root = __DIR__;
-	$router = "responder/get.php";
-
-	$descriptorspec = array(
-		0 => STDIN,
-		1 => STDOUT,
-		2 => STDERR,
-	);
-
-	if (substr(PHP_OS, 0, 3) == 'WIN') {
-		$cmd = "{$php_executable} -t {$doc_root} -n -S " . PHP_CURL_SERVER_ADDRESS;
+    $php_executable = getenv('TEST_PHP_EXECUTABLE');
+    $doc_root = __DIR__;
+    $router = "responder/get.php";
+
+    $descriptorspec = array(
+        0 => STDIN,
+        1 => STDOUT,
+        2 => STDERR,
+    );
+
+    if (substr(PHP_OS, 0, 3) == 'WIN') {
+        $cmd = "{$php_executable} -t {$doc_root} -n -S " . PHP_CURL_SERVER_ADDRESS;
+        $cmd .= " {$router}";
+        $handle = proc_open(addslashes($cmd), $descriptorspec, $pipes, $doc_root, NULL, array("bypass_shell" => true,  "suppress_errors" => true));
+    } else {
+        $cmd = "exec {$php_executable} -t {$doc_root} -n -S " . PHP_CURL_SERVER_ADDRESS;
         $cmd .= " {$router}";
-		$handle = proc_open(addslashes($cmd), $descriptorspec, $pipes, $doc_root, NULL, array("bypass_shell" => true,  "suppress_errors" => true));
-	} else {
-		$cmd = "exec {$php_executable} -t {$doc_root} -n -S " . PHP_CURL_SERVER_ADDRESS;
-		$cmd .= " {$router}";
-		$cmd .= " 2>/dev/null";
-
-		$handle = proc_open($cmd, $descriptorspec, $pipes, $doc_root);
-	}
+        $cmd .= " 2>/dev/null";
+
+        $handle = proc_open($cmd, $descriptorspec, $pipes, $doc_root);
+    }
 
-	// note: even when server prints 'Listening on localhost:8964...Press Ctrl-C to quit.'
-	//       it might not be listening yet...need to wait until fsockopen() call returns
-    $i = 0;
-    while (($i++ < 30) && !($fp = @fsockopen(PHP_CURL_SERVER_HOSTNAME, PHP_CURL_SERVER_PORT))) {
-        usleep(10000);
+    // note: even when server prints 'Listening on localhost:8964...Press Ctrl-C to quit.'
+    //       it might not be listening yet...need to wait until fsockopen() call returns
+    $error = "Unable to connect to servers\n";
+    for ($i=0; $i < 60; $i++) {
+        usleep(25000); // 25ms per try
+        $status = proc_get_status($handle);
+        $fp = @fsockopen(PHP_CURL_SERVER_HOSTNAME, PHP_CURL_SERVER_PORT);
+        // Failure, the server is no longer running
+        if (!($status && $status['running'])) {
+            $error = "Server is not running\n";
+            break;
+        }
+        // Success, Connected to servers
+        if ($fp) {
+            $error = '';
+            break;
+        }
     }
 
     if ($fp) {
         fclose($fp);
     }
 
-	register_shutdown_function(
-		function($handle) use($router) {
-			proc_terminate($handle);
-		},
-			$handle
+    if ($error) {
+        echo $error;
+        proc_close($handle);
+        exit(1);
+    }
+
+    register_shutdown_function(
+        function($handle) use($router) {
+            proc_terminate($handle);
+        },
+        $handle
 		);
-	// don't bother sleeping, server is already up
-	// server can take a variable amount of time to be up, so just sleeping a guessed amount of time
-	// does not work. this is why tests sometimes pass and sometimes fail. to get a reliable pass
-	// sleeping doesn't work.
+
     return PHP_CURL_SERVER_ADDRESS;
 }
+