objc

NSTask_posix_spawn_popen

NSTask、posix_spawn、popen 的应用例子

Posted by kunnan on May 13, 2018

前言

  • 本文以执行shell 为例子,从#include <spawn.h> 的popen方法为线索 
    FILE	*popen(const char *, const char *) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_2_0, __DARWIN_ALIAS(popen)) __swift_unavailable_on("Use posix_spawn APIs or NSTask instead.", "Process spawning is unavailable.");
  • code

I、popen

  • popen 
          // popen(@"killall -9  WeChat", @"r");//#include <stdio.h>

II、 NSTask

  • /Users/devzkn/code/github/gnustep-base/Source/NSTask.m 
    /Users/devzkn/code/github/gnustep-base/Headers/Foundation/NSTask.h
  • launchedTaskWithLaunchPath: arguments: & kndoShellCmd:

III、posix_spawn

3.1 posix_spawn

  • status = posix_spawn(&pid, "/bin/sh", NULL, NULL, argv, (char **)&myenviron);
  • ` posix_spawnp(&pid, path, &fact, &attr, args, environ);` 
    // 方式一	
run("killall -9  WeChat");//
//方式二
    NSArray* args = @[@"-9",@"WeChat"];
[KNnoZombieRunobjc Run:@"killall" withParams:args];//#include <spawn.h>

See Also

/Users/devzkn/bin/knpost NSTask_posix_spawn_popen NSTask、posix_spawn、popen 的应用例子 -t objc
#原来""的参数，需要自己加上""

转载请注明： > NSTask_posix_spawn_popen

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