🔥 delete useless native functions

src/nasal_codegen.h

@@ -57,8 +57,7 @@ private:
         // dylib
         "__dlopen", "__dlclose", "__dlcallv", "__dlcall",
         // unix
-        "__pipe", "__fork", "__waitpid", "__chdir",
-        "__environ", "__getcwd", "__getenv",
+        "__chdir", "__environ", "__getcwd", "__getenv",
         // subprocess
         "__subprocess_create",
         "__subprocess_terminate"

src/natives/unix_lib.cpp

@@ -12,48 +12,6 @@ void dir_entry_destructor(void* ptr) {
 #endif
 }
 
-var builtin_pipe(context* ctx, gc* ngc) {
-#ifndef _WIN32
-    i32 fd[2];
-    var res = ngc->alloc(vm_type::vm_vec);
-    if (pipe(fd)==-1) {
-        return nas_err("unix::pipe", "failed to create pipe");
-    }
-    res.vec().elems.push_back(var::num(static_cast<f64>(fd[0])));
-    res.vec().elems.push_back(var::num(static_cast<f64>(fd[1])));
-    return res;
-#endif
-    return nas_err("unix::pipe", "not supported on windows");
-}
-
-var builtin_fork(context* ctx, gc* ngc) {
-#ifndef _WIN32
-    f64 res = fork();
-    if (res<0) {
-        return nas_err("unix::fork", "failed to fork a process");
-    }
-    return var::num(static_cast<f64>(res));
-#endif
-    return nas_err("unix::fork", "not supported on windows");
-}
-
-var builtin_waitpid(context* ctx, gc* ngc) {
-    auto pid = ctx->localr[1];
-    auto nohang = ctx->localr[2];
-    if (!pid.is_num() || !nohang.is_num()) {
-        return nas_err("unix::waitpid", "pid and nohang must be number");
-    }
-#ifndef _WIN32
-    i32 ret_pid, status;
-    ret_pid = waitpid(pid.num(), &status, nohang.num()==0? 0:WNOHANG);
-    var vec = ngc->alloc(vm_type::vm_vec);
-    vec.vec().elems.push_back(var::num(static_cast<f64>(ret_pid)));
-    vec.vec().elems.push_back(var::num(static_cast<f64>(status)));
-    return vec;
-#endif
-    return nas_err("unix::waitpid", "not supported on windows");
-}
-
 var builtin_opendir(context* ctx, gc* ngc) {
     auto path = ctx->localr[1];
     if (!path.is_str()) {
@@ -139,9 +97,6 @@ var builtin_getenv(context* ctx, gc* ngc) {
 }
 
 nasal_builtin_table unix_lib_native[] = {
-    {"__pipe", builtin_pipe},
-    {"__fork", builtin_fork},
-    {"__waitpid", builtin_waitpid},
     {"__opendir", builtin_opendir},
     {"__readdir", builtin_readdir},
     {"__closedir", builtin_closedir},

src/natives/unix_lib.h

@@ -24,9 +24,6 @@ namespace nasal {
 
 void dir_entry_destructor(void*);
 
-var builtin_pipe(context*, gc*);
-var builtin_fork(context*, gc*);
-var builtin_waitpid(context*, gc*);
 var builtin_opendir(context*, gc*);
 var builtin_readdir(context*, gc*);
 var builtin_closedir(context*, gc*);

std/unix.nas

@@ -7,26 +7,6 @@ use std.io;
 var _S_IFDIR = 0x4000;
 var _S_IFREG = 0x8000;
 
-var pipe = func() {
-    return __pipe;
-}
-
-var fork = func() {
-    return __fork;
-}
-
-var dup2 = func(fd0, fd1) {
-    die("not supported yet");
-}
-
-var exec = func(filename, argv, envp) {
-    die("not supported yet");
-}
-
-var waitpid = func(pid, nohang = 0) {
-    return __waitpid;
-}
-
 var isdir = func(path) {
     return !!bits.u32_and(io.stat(path)[2], _S_IFDIR);
 }