From ec688b4723a041044226358bcd4dd6e2da39da49 Mon Sep 17 00:00:00 2001
From: Luca Muscariello <lumuscar+fdio@cisco.com>
Date: Thu, 23 Feb 2017 17:01:02 +0100
Subject: Initial commit: cframework. Longbow and Libparc

Change-Id: I90378dbd30da6033b20fb1f829b3b822cf366c59
Signed-off-by: Luca Muscariello <lumuscar+fdio@cisco.com>
---
 .../src/LongBow/longBow_SubProcess_Darwin_x86_64.c | 136 +++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100755 longbow/src/LongBow/longBow_SubProcess_Darwin_x86_64.c

(limited to 'longbow/src/LongBow/longBow_SubProcess_Darwin_x86_64.c')

diff --git a/longbow/src/LongBow/longBow_SubProcess_Darwin_x86_64.c b/longbow/src/LongBow/longBow_SubProcess_Darwin_x86_64.c
new file mode 100755
index 00000000..6c0a0f7a
--- /dev/null
+++ b/longbow/src/LongBow/longBow_SubProcess_Darwin_x86_64.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ */
+#include <config.h>
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <signal.h>
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/wait.h>
+
+#include <LongBow/longBow_SubProcess.h>
+#include <LongBow/private/longBow_Memory.h>
+
+struct longbow_subprocess {
+    const char *path;
+    char **arguments;
+    pid_t pid;
+    int exitStatus;
+    struct rusage rusage;
+};
+
+static void
+_resetAllSignals(void)
+{
+    struct sigaction signalAction;
+    signalAction.sa_handler = SIG_DFL;
+    signalAction.sa_flags = SA_SIGINFO;
+    sigemptyset(&signalAction.sa_mask);
+
+    for (int i = 1; i < NSIG; i++) {
+        sigaction(i, &signalAction, NULL);
+    }
+}
+
+LongBowSubProcess *
+longBowSubProcess_Exec(const char *path, ... /*, (char *)0 */)
+{
+    va_list ap;
+    va_start(ap, path);
+
+    size_t count = 0;
+    for (char *arg = va_arg(ap, char *); arg != NULL; arg = va_arg(ap, char *)) {
+        count++;
+    }
+
+    LongBowSubProcess *result = longBowMemory_Allocate(sizeof(LongBowSubProcess));
+
+    result->path = path;
+    longBowMemory_Allocate(sizeof(char *) * count + 1);
+    va_end(ap);
+    // This relies on the last element being all zeros.
+    va_start(ap, path);
+
+    for (size_t i = 0; i < count; i++) {
+        result->arguments[i] = va_arg(ap, char *);
+    }
+    va_end(ap);
+
+    result->pid = fork();
+    if (result->pid == 0) {
+        _resetAllSignals();
+        printf("Exec %s\n", result->path);
+        int error = execv(result->path, result->arguments);
+        printf("Error %d\n", error);
+        perror(path);
+        exit(1);
+    }
+
+    printf("Process group child=%d, parent=%d\n", getpgid(result->pid), getpgrp());
+    return result;
+}
+
+void
+longBowSubProcess_Destroy(LongBowSubProcess **processPtr)
+{
+    LongBowSubProcess *process = *processPtr;
+
+    if (process->pid) {
+        longBowSubProcess_Signal(process, SIGKILL);
+    }
+
+    longBowMemory_Deallocate((void **) process->arguments);
+    longBowMemory_Deallocate((void **) processPtr);
+}
+
+bool
+longBowSubProcess_Terminate(LongBowSubProcess *subProcess)
+{
+    return longBowSubProcess_Signal(subProcess, SIGTERM);
+}
+
+bool
+longBowSubProcess_Signal(LongBowSubProcess *subProcess, int signalNumber)
+{
+    return kill(subProcess->pid, signalNumber) == 0;
+}
+
+void
+longBowSubProcess_Wait(LongBowSubProcess *subProcess)
+{
+    wait4(subProcess->pid, &subProcess->exitStatus, 0, &subProcess->rusage);
+    subProcess->pid = 0;
+}
+
+void
+longBowSubProcess_Display(const LongBowSubProcess *subprocess, int indentation)
+{
+    printf("%*s%s: ", indentation, "", subprocess->path);
+    if (subprocess->pid == 0) {
+        printf("not running .exitStatus=%d ", subprocess->exitStatus);
+    } else {
+        printf(".pid=%d", subprocess->pid);
+    }
+
+    printf("\n");
+}
-- 
cgit 1.2.3-korg