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#include "rust_internal.h"
#define TRACK_ALLOCATIONS
rust_srv::rust_srv() :
live_allocs(0)
{
}
rust_srv::~rust_srv()
{
if (live_allocs != 0) {
char msg[128];
snprintf(msg, sizeof(msg),
"leaked memory in rust main loop (%" PRIuPTR " objects)",
live_allocs);
#ifdef TRACK_ALLOCATIONS
for (size_t i = 0; i < allocation_list.size(); i++) {
if (allocation_list[i] != NULL) {
printf("allocation 0x%" PRIxPTR " was not freed\n",
(uintptr_t) allocation_list[i]);
}
}
#endif
fatal(msg, __FILE__, __LINE__);
}
}
void
rust_srv::log(char const *str)
{
printf("rt: %s\n", str);
}
void *
rust_srv::malloc(size_t bytes)
{
++live_allocs;
void * val = ::malloc(bytes);
#ifdef TRACK_ALLOCATIONS
allocation_list.append(val);
#endif
return val;
}
void *
rust_srv::realloc(void *p, size_t bytes)
{
if (!p) {
live_allocs++;
}
void * val = ::realloc(p, bytes);
#ifdef TRACK_ALLOCATIONS
if (allocation_list.replace(p, val) == false) {
printf("realloc: ptr 0x%" PRIxPTR " is not in allocation_list\n",
(uintptr_t) p);
fatal("not in allocation_list", __FILE__, __LINE__);
}
#endif
return val;
}
void
rust_srv::free(void *p)
{
#ifdef TRACK_ALLOCATIONS
if (allocation_list.replace(p, NULL) == false) {
printf("free: ptr 0x%" PRIxPTR " is not in allocation_list\n",
(uintptr_t) p);
fatal("not in allocation_list", __FILE__, __LINE__);
}
#endif
if (live_allocs < 1) {
fatal("live_allocs < 1", __FILE__, __LINE__);
}
live_allocs--;
::free(p);
}
void
rust_srv::fatal(char const *expr, char const *file, size_t line)
{
char buf[1024];
snprintf(buf, sizeof(buf),
"fatal, '%s' failed, %s:%d",
expr, file, (int)line);
log(buf);
exit(1);
}
void
rust_srv::warning(char const *expr, char const *file, size_t line)
{
char buf[1024];
snprintf(buf, sizeof(buf),
"warning: '%s', at: %s:%d",
expr, file, (int)line);
log(buf);
}
rust_srv *
rust_srv::clone()
{
return new rust_srv();
}
struct
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
}
};
extern "C" CDECL int
rust_start(uintptr_t main_fn, rust_crate const *crate, int argc, char **argv)
{
int ret;
{
rust_srv srv;
rust_dom dom(&srv, crate, "main");
command_line_args args(dom, argc, argv);
dom.log(rust_log::DOM, "startup: %d args", args.argc);
for (int i = 0; i < args.argc; ++i)
dom.log(rust_log::DOM,
"startup: arg[%d] = '%s'", i, args.argv[i]);
if (dom._log.is_tracing(rust_log::DWARF)) {
rust_crate_reader rdr(&dom, crate);
}
uintptr_t main_args[4] = { 0, 0, 0, (uintptr_t)args.args };
dom.root_task->start(crate->get_exit_task_glue(),
main_fn,
(uintptr_t)&main_args,
sizeof(main_args));
ret = dom.start_main_loop();
}
#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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