diff options
Diffstat (limited to 'www/chromium/files/patch-base_process_launch__posix.cc')
| -rw-r--r-- | www/chromium/files/patch-base_process_launch__posix.cc | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/www/chromium/files/patch-base_process_launch__posix.cc b/www/chromium/files/patch-base_process_launch__posix.cc index ce6054a8ff79..babfecc41ee0 100644 --- a/www/chromium/files/patch-base_process_launch__posix.cc +++ b/www/chromium/files/patch-base_process_launch__posix.cc @@ -1,4 +1,4 @@ ---- base/process/launch_posix.cc.orig 2019-06-04 18:55:15 UTC +--- base/process/launch_posix.cc.orig 2020-09-08 19:13:57 UTC +++ base/process/launch_posix.cc @@ -65,6 +65,7 @@ #error "macOS should use launch_mac.cc" @@ -8,3 +8,32 @@ extern char** environ; namespace base { +@@ -228,6 +229,28 @@ + DirReaderPosix fd_dir(kFDDir); + if (!fd_dir.IsValid()) { + // Fallback case: Try every possible fd. ++ ++#if defined(OS_FREEBSD) ++ // CEM: blast away most of the range with closefrom(). A common use case ++ // of this function only maps STDIN/STDOUT/STDERR and closefrom(3) is much ++ // cheaper than x00,000 close(2) invocations with a high RLIMIT_NOFILE. ++ // ++ // In the other caller, it is still very likely that the fds we care about ++ // are in relatively low number space and we can save hundreds of thousands ++ // of syscalls. ++ int max_valid_fd = -1; ++ for (size_t j = 0; j < saved_mapping.size(); j++) { ++ int fd = saved_mapping[j].dest; ++ if (fd > max_valid_fd) ++ max_valid_fd = fd; ++ } ++ if (max_valid_fd < STDERR_FILENO) ++ max_valid_fd = STDERR_FILENO; ++ ++ closefrom(max_valid_fd + 1); ++ max_fds = static_cast<size_t>(max_valid_fd) + 1; ++#endif ++ + for (size_t i = 0; i < max_fds; ++i) { + const int fd = static_cast<int>(i); + if (fd == STDIN_FILENO || fd == STDOUT_FILENO || fd == STDERR_FILENO) |