130 lines
4.1 KiB
C++
130 lines
4.1 KiB
C++
#include "rust_internal.h"
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struct
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command_line_args : public dom_owned<command_line_args>
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{
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rust_dom *dom;
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int argc;
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char **argv;
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// vec[str] passed to rust_task::start.
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rust_vec *args;
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command_line_args(rust_dom *dom,
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int sys_argc,
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char **sys_argv)
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: dom(dom),
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argc(sys_argc),
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argv(sys_argv),
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args(NULL)
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{
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#if defined(__WIN32__)
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LPCWSTR cmdline = GetCommandLineW();
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LPWSTR *wargv = CommandLineToArgvW(cmdline, &argc);
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dom->win32_require("CommandLineToArgvW", wargv != NULL);
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argv = (char **) dom->malloc(sizeof(char*) * argc);
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for (int i = 0; i < argc; ++i) {
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int n_chars = WideCharToMultiByte(CP_UTF8, 0, wargv[i], -1,
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NULL, 0, NULL, NULL);
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dom->win32_require("WideCharToMultiByte(0)", n_chars != 0);
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argv[i] = (char *) dom->malloc(n_chars);
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n_chars = WideCharToMultiByte(CP_UTF8, 0, wargv[i], -1,
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argv[i], n_chars, NULL, NULL);
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dom->win32_require("WideCharToMultiByte(1)", n_chars != 0);
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}
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LocalFree(wargv);
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#endif
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size_t vec_fill = sizeof(rust_str *) * argc;
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size_t vec_alloc = next_power_of_two(sizeof(rust_vec) + vec_fill);
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void *mem = dom->malloc(vec_alloc);
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args = new (mem) rust_vec(dom, vec_alloc, 0, NULL);
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rust_str **strs = (rust_str**) &args->data[0];
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for (int i = 0; i < argc; ++i) {
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size_t str_fill = strlen(argv[i]) + 1;
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size_t str_alloc = next_power_of_two(sizeof(rust_str) + str_fill);
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mem = dom->malloc(str_alloc);
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strs[i] = new (mem) rust_str(dom, str_alloc, str_fill,
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(uint8_t const *)argv[i]);
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}
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args->fill = vec_fill;
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// If the caller has a declared args array, they may drop; but
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// we don't know if they have such an array. So we pin the args
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// array here to ensure it survives to program-shutdown.
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args->ref();
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}
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~command_line_args() {
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if (args) {
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// Drop the args we've had pinned here.
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rust_str **strs = (rust_str**) &args->data[0];
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for (int i = 0; i < argc; ++i)
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dom->free(strs[i]);
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dom->free(args);
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}
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#ifdef __WIN32__
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for (int i = 0; i < argc; ++i) {
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dom->free(argv[i]);
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}
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dom->free(argv);
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#endif
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}
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};
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/**
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* Main entry point into the Rust runtime. Here we create a Rust service,
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* initialize the kernel, create the root domain and run it.
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*/
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extern "C" CDECL int
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rust_start(uintptr_t main_fn, rust_crate const *crate, int argc,
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char **argv, void* crate_map) {
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update_log_settings(crate_map, getenv("RUST_LOG"));
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rust_srv *srv = new rust_srv();
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rust_kernel *kernel = new rust_kernel(srv);
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kernel->start();
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rust_handle<rust_dom> *handle = kernel->create_domain("main");
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rust_dom *dom = handle->referent();
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command_line_args *args = new (dom) command_line_args(dom, argc, argv);
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DLOG(dom, dom, "startup: %d args in 0x%" PRIxPTR,
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args->argc, (uintptr_t)args->args);
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for (int i = 0; i < args->argc; i++) {
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DLOG(dom, dom, "startup: arg[%d] = '%s'", i, args->argv[i]);
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}
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if (log_rt_dwarf) {
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rust_crate_reader create_reader(dom, crate);
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}
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uintptr_t main_args[4] = {0, 0, 0, (uintptr_t)args->args};
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dom->root_task->start(main_fn,
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(uintptr_t)&main_args, sizeof(main_args));
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int ret = dom->start_main_loop();
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delete args;
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kernel->destroy_domain(dom);
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kernel->join_all_domains();
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delete kernel;
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delete srv;
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#if !defined(__WIN32__)
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// Don't take down the process if the main thread exits without an
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// error.
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if (!ret)
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pthread_exit(NULL);
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#endif
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return ret;
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}
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//
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// Local Variables:
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// mode: C++
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// fill-column: 78;
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// indent-tabs-mode: nil
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// c-basic-offset: 4
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// buffer-file-coding-system: utf-8-unix
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// compile-command: "make -k -C .. 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
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// End:
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//
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