Nixyri/zig
1
0
Fork 0
mirror of https://github.com/ziglang/zig.git synced 2024-11-17 01:23:54 +00:00
Code Issues Packages Projects Releases Wiki Activity

stage2: Only bypass flock on WASI

Browse Source
This commit is contained in:
Cody Tapscott 2022-04-18 23:08:00 -07:00
parent bb9cd6db1c
commit f8dc6fc416
1 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/Cache.zig
View File

@ -762,7 +762,11 @@ pub const Manifest = struct {
fn downgradeToSharedLock(self: *Manifest) !void {
if (!self.have_exclusive_lock) return;
if (std.process.can_spawn or !builtin.single_threaded) { // Some targets (WASI) do not support flock
// WASI does not currently support flock, so we bypass it here.
// TODO: If/when flock is supported on WASI, this check should be removed.
// See https://github.com/WebAssembly/wasi-filesystem/issues/2
if (builtin.os.tag != .wasi or std.process.can_spawn or !builtin.single_threaded) {
const manifest_file = self.manifest_file.?;
try manifest_file.downgradeLock();
}
@ -771,7 +775,11 @@ pub const Manifest = struct {
fn upgradeToExclusiveLock(self: *Manifest) !void {
if (self.have_exclusive_lock) return;
if (std.process.can_spawn or !builtin.single_threaded) { // Some targets (WASI) do not support flock
// WASI does not currently support flock, so we bypass it here.
// TODO: If/when flock is supported on WASI, this check should be removed.
// See https://github.com/WebAssembly/wasi-filesystem/issues/2
if (builtin.os.tag != .wasi or std.process.can_spawn or !builtin.single_threaded) {
const manifest_file = self.manifest_file.?;
// Here we intentionally have a period where the lock is released, in case there are
// other processes holding a shared lock.