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40/118: Remove maybeVfork


From: Ludovic Courtès
Subject: 40/118: Remove maybeVfork
Date: Tue, 19 May 2015 14:45:31 +0000

civodul pushed a commit to branch nix
in repository guix.

commit 7911e4c27a0020a61ace13cfdc44de4af02f315e
Author: Eelco Dolstra <address@hidden>
Date:   Mon Jun 23 09:15:35 2014 -0400

    Remove maybeVfork
---
 configure.ac                |    4 ----
 src/libstore/build.cc       |    4 ++--
 src/libstore/local-store.cc |    2 +-
 src/libutil/util.cc         |    9 +--------
 src/libutil/util.hh         |    3 ---
 5 files changed, 4 insertions(+), 18 deletions(-)

diff --git a/configure.ac b/configure.ac
index 55e6191..00c1d49 100644
--- a/configure.ac
+++ b/configure.ac
@@ -89,10 +89,6 @@ AC_CHECK_HEADERS([sys/mount.h], [], [],
 ])
 
 
-# Check for vfork.
-#AC_FUNC_FORK()
-
-
 # Check for lutimes, optionally used for changing the mtime of
 # symlinks.
 AC_CHECK_FUNCS([lutimes])
diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index f38cd29..70a3eff 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -602,7 +602,7 @@ HookInstance::HookInstance()
     builderOut.create();
 
     /* Fork the hook. */
-    pid = maybeVfork();
+    pid = fork();
     switch (pid) {
 
     case -1:
@@ -2781,7 +2781,7 @@ void SubstitutionGoal::tryToRun()
     const char * * argArr = strings2CharPtrs(args);
 
     /* Fork the substitute program. */
-    pid = maybeVfork();
+    pid = fork();
 
     switch (pid) {
 
diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc
index 5d210ae..08ab269 100644
--- a/src/libstore/local-store.cc
+++ b/src/libstore/local-store.cc
@@ -1083,7 +1083,7 @@ void LocalStore::startSubstituter(const Path & 
substituter, RunningSubstituter &
 
     setSubstituterEnv();
 
-    run.pid = maybeVfork();
+    run.pid = fork();
 
     switch (run.pid) {
 
diff --git a/src/libutil/util.cc b/src/libutil/util.cc
index 8fc78b1..5f6203b 100644
--- a/src/libutil/util.cc
+++ b/src/libutil/util.cc
@@ -868,7 +868,7 @@ string runProgram(Path program, bool searchPath, const 
Strings & args)
 
     /* Fork. */
     Pid pid;
-    pid = maybeVfork();
+    pid = fork();
 
     switch (pid) {
 
@@ -928,13 +928,6 @@ void closeOnExec(int fd)
 }
 
 
-#if HAVE_VFORK
-pid_t (*maybeVfork)() = vfork;
-#else
-pid_t (*maybeVfork)() = fork;
-#endif
-
-
 //////////////////////////////////////////////////////////////////////
 
 
diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index 1e9ffcf..07c027a 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -266,9 +266,6 @@ void closeMostFDs(const set<int> & exceptions);
 /* Set the close-on-exec flag for the given file descriptor. */
 void closeOnExec(int fd);
 
-/* Call vfork() if available, otherwise fork(). */
-extern pid_t (*maybeVfork)();
-
 
 /* User interruption. */
 



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