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