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add stuff needed for process control

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This commit is contained in:
Colin Davidson
2024-08-25 03:57:59 -07:00
parent d410281766
commit b396280df7
2 changed files with 87 additions and 3 deletions
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core/os/os_darwin.odin
+25
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@@ -9,6 +9,7 @@ import "core:strings"
import "core:c"
Handle :: distinct i32
Pid :: distinct i32
File_Time :: distinct u64
INVALID_HANDLE :: ~Handle(0)
@@ -584,6 +585,8 @@ F_GETPATH :: 50 // return the full path of the fd
foreign libc {
@(link_name="__error") __error :: proc() -> ^c.int ---
@(link_name="posix_spawn") _unix_posix_spawn :: proc(pid: ^Pid, path: cstring, file_actions: rawptr, attrp: rawptr, argv: [^]cstring, envp: [^]cstring) -> c.int ---
@(link_name="open") _unix_open :: proc(path: cstring, flags: i32, #c_vararg mode: ..u16) -> Handle ---
@(link_name="close") _unix_close :: proc(handle: Handle) -> c.int ---
@(link_name="read") _unix_read :: proc(handle: Handle, buffer: rawptr, count: c.size_t) -> int ---
@@ -677,6 +680,28 @@ get_last_error_string :: proc() -> string {
return string(_darwin_string_error(__error()^))
}
posix_spawn :: proc(path: string, args: []string, envs: []string, file_actions: rawptr, attributes: rawptr) -> (Pid, Error) {
runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
args_cstrs := make([]cstring, len(args) + 2, context.temp_allocator)
args_cstrs[0] = strings.clone_to_cstring(path, context.temp_allocator)
for i := 0; i < len(args); i += 1 {
args_cstrs[i+1] = strings.clone_to_cstring(args[i], context.temp_allocator)
}
envs_cstrs := make([]cstring, len(envs) + 1, context.temp_allocator)
for i := 0; i < len(envs); i += 1 {
envs_cstrs[i] = strings.clone_to_cstring(envs[i], context.temp_allocator)
}
child_pid: Pid
status := _unix_posix_spawn(&child_pid, path_cstr, file_actions, attributes, raw_data(args_cstrs), raw_data(envs_cstrs))
if status != 0 {
return 0, get_last_error()
}
return child_pid, nil
}
@(require_results)
open :: proc(path: string, flags: int = O_RDWR, mode: int = 0) -> (handle: Handle, err: Error) {