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Refactoring: Move all fork handling into a higher-order function

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C++11 lambdas ftw.
This commit is contained in:
Eelco Dolstra 2014-07-10 16:50:51 +02:00
parent 1114c7bd57
commit 8e9140cfde
7 changed files with 128 additions and 206 deletions
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7
src/libutil/util.hh
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@ -7,6 +7,7 @@
#include <dirent.h>
#include <unistd.h>
#include <signal.h>
#include <functional>
#include <cstdio>
@ -237,6 +238,7 @@ class Pid
int killSignal;
public:
Pid();
Pid(pid_t pid);
~Pid();
void operator =(pid_t pid);
operator pid_t();
@ -252,6 +254,11 @@ public:
void killUser(uid_t uid);
/* Fork a process that runs the given function, and return the child
pid to the caller. */
pid_t startProcess(std::function<void()> fun, const string & errorPrefix = "error: ");
/* Run a program and return its stdout in a string (i.e., like the
shell backtick operator). */
string runProgram(Path program, bool searchPath = false,