-
Notifications
You must be signed in to change notification settings - Fork 28
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
These are required for macOS anyway, might as well remove `Unix` again.
- Loading branch information
1 parent
d3d2731
commit 061afee
Showing
5 changed files
with
104 additions
and
15 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| external get_executable_path : unit -> string option = "fl_executable_path" | ||
|
|
||
| let executable_path = lazy (get_executable_path ()) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| #include <unistd.h> | ||
| #include <sys/stat.h> | ||
| #include <caml/mlvalues.h> | ||
| #include <caml/alloc.h> | ||
| #include <caml/memory.h> | ||
|
|
||
| /* caml_executable_name exists but doesn't support macOS on all compiler versions */ | ||
| char* fl_caml_executable_name(void) { | ||
| #if defined(__linux__) | ||
| int namelen, retcode; | ||
| char * name; | ||
| struct stat st; | ||
|
|
||
| /* lstat("/proc/self/exe") returns st_size == 0 so we cannot use it | ||
| to determine the size of the buffer. Instead, we guess and adjust. */ | ||
| namelen = 256; | ||
| while (1) { | ||
| name = caml_stat_alloc(namelen); | ||
| retcode = readlink("/proc/self/exe", name, namelen); | ||
| if (retcode == -1) { caml_stat_free(name); return NULL; } | ||
| if (retcode < namelen) break; | ||
| caml_stat_free(name); | ||
| if (namelen >= 1024*1024) return NULL; /* avoid runaway and overflow */ | ||
| namelen *= 2; | ||
| } | ||
| /* readlink() does not zero-terminate its result. | ||
| There is room for a final zero since retcode < namelen. */ | ||
| name[retcode] = 0; | ||
| /* Make sure that the contents of /proc/self/exe is a regular file. | ||
| (Old Linux kernels return an inode number instead.) */ | ||
| if (stat(name, &st) == -1 || ! S_ISREG(st.st_mode)) { | ||
| caml_stat_free(name); return NULL; | ||
| } | ||
| return name; | ||
|
|
||
| #elif defined(__APPLE__) | ||
| unsigned int namelen; | ||
| char * name; | ||
|
|
||
| namelen = 256; | ||
| name = caml_stat_alloc(namelen); | ||
| if (_NSGetExecutablePath(name, &namelen) == 0) return name; | ||
| caml_stat_free(name); | ||
| /* Buffer is too small, but namelen now contains the size needed */ | ||
| name = caml_stat_alloc(namelen); | ||
| if (_NSGetExecutablePath(name, &namelen) == 0) return name; | ||
| caml_stat_free(name); | ||
| return NULL; | ||
|
|
||
| #else | ||
| return NULL; | ||
|
|
||
| #endif | ||
| } | ||
|
|
||
| /* redefinitions of macros and helpers from newer ocaml */ | ||
| #define Fl_Tag_some 0 | ||
| #define Fl_Val_none Val_int(0) | ||
|
|
||
| CAMLprim value fl_caml_alloc_some(value v) | ||
| { | ||
| CAMLparam1(v); | ||
| value some = caml_alloc_small(1, Fl_Tag_some); | ||
| Field(some, 0) = v; | ||
| CAMLreturn(some); | ||
| } | ||
|
|
||
| CAMLprim value fl_executable_path(value unit) { | ||
| CAMLparam1(unit); | ||
| CAMLlocal2(caml_path, caml_result); | ||
| char* path = fl_caml_executable_name(); | ||
| if (path != NULL) { | ||
| caml_path = caml_copy_string(path); | ||
| caml_result = fl_caml_alloc_some(caml_path); | ||
| caml_stat_free(path); | ||
| } else { | ||
| caml_result = Fl_Val_none; | ||
| } | ||
| CAMLreturn(caml_result); | ||
| } |