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use context.temp_allocator instead of general allocation + delete()

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where clone_to_cstring is used with foreign code, it is prefered to use `context.temp_allocator` instead of using the general allocator and manually delete the memory after use.
This commit is contained in:
Sébastien Marie
2022-02-24 11:28:42 +00:00
parent ea34f321ed
commit 14f1793b3e
4 changed files with 26 additions and 53 deletions
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core/os/os_linux.odin
+9 -18
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@@ -460,9 +460,8 @@ fork :: proc() -> (Pid, Errno) {
}
open :: proc(path: string, flags: int = O_RDONLY, mode: int = 0) -> (Handle, Errno) {
cstr := strings.clone_to_cstring(path)
cstr := strings.clone_to_cstring(path, context.temp_allocator)
handle := _unix_open(cstr, flags, mode)
defer delete(cstr)
if handle < 0 {
return INVALID_HANDLE, _get_errno(int(handle))
}
@@ -610,8 +609,7 @@ last_write_time_by_name :: proc(name: string) -> (File_Time, Errno) {
@private
_stat :: proc(path: string) -> (OS_Stat, Errno) {
cstr := strings.clone_to_cstring(path)
defer delete(cstr)
cstr := strings.clone_to_cstring(path, context.temp_allocator)
// deliberately uninitialized; the syscall fills this buffer for us
s: OS_Stat = ---
@@ -624,8 +622,7 @@ _stat :: proc(path: string) -> (OS_Stat, Errno) {
@private
_lstat :: proc(path: string) -> (OS_Stat, Errno) {
cstr := strings.clone_to_cstring(path)
defer delete(cstr)
cstr := strings.clone_to_cstring(path, context.temp_allocator)
// deliberately uninitialized; the syscall fills this buffer for us
s: OS_Stat = ---
@@ -692,8 +689,7 @@ _readdir :: proc(dirp: Dir) -> (entry: Dirent, err: Errno, end_of_stream: bool)
@private
_readlink :: proc(path: string) -> (string, Errno) {
path_cstr := strings.clone_to_cstring(path)
defer delete(path_cstr)
path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
bufsz : uint = 256
buf := make([]byte, bufsz)
@@ -729,8 +725,7 @@ absolute_path_from_relative :: proc(rel: string) -> (path: string, err: Errno) {
rel = "."
}
rel_cstr := strings.clone_to_cstring(rel)
defer delete(rel_cstr)
rel_cstr := strings.clone_to_cstring(rel, context.temp_allocator)
path_ptr := _unix_realpath(rel_cstr, nil)
if path_ptr == nil {
@@ -745,8 +740,7 @@ absolute_path_from_relative :: proc(rel: string) -> (path: string, err: Errno) {
}
access :: proc(path: string, mask: int) -> (bool, Errno) {
cstr := strings.clone_to_cstring(path)
defer delete(cstr)
cstr := strings.clone_to_cstring(path, context.temp_allocator)
result := _unix_access(cstr, mask)
if result < 0 {
return false, _get_errno(result)
@@ -770,8 +764,7 @@ heap_free :: proc(ptr: rawptr) {
}
getenv :: proc(name: string) -> (string, bool) {
path_str := strings.clone_to_cstring(name)
defer delete(path_str)
path_str := strings.clone_to_cstring(name, context.temp_allocator)
cstr := _unix_getenv(path_str)
if cstr == nil {
return "", false
@@ -817,15 +810,13 @@ current_thread_id :: proc "contextless" () -> int {
}
dlopen :: proc(filename: string, flags: int) -> rawptr {
cstr := strings.clone_to_cstring(filename)
defer delete(cstr)
cstr := strings.clone_to_cstring(filename, context.temp_allocator)
handle := _unix_dlopen(cstr, c.int(flags))
return handle
}
dlsym :: proc(handle: rawptr, symbol: string) -> rawptr {
assert(handle != nil)
cstr := strings.clone_to_cstring(symbol)
defer delete(cstr)
cstr := strings.clone_to_cstring(symbol, context.temp_allocator)
proc_handle := _unix_dlsym(handle, cstr)
return proc_handle
}