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Diffstat (limited to 'erts/emulator/sys/win32/sys.c')
-rw-r--r--erts/emulator/sys/win32/sys.c218
1 files changed, 94 insertions, 124 deletions
diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c
index 15c59109b1..b95aadc9b2 100644
--- a/erts/emulator/sys/win32/sys.c
+++ b/erts/emulator/sys/win32/sys.c
@@ -77,14 +77,13 @@ static int create_pipe(LPHANDLE, LPHANDLE, BOOL, BOOL);
static int application_type(const wchar_t* originalName, wchar_t fullPath[MAX_PATH],
BOOL search_in_path, BOOL handle_quotes,
int *error_return);
+static void *build_env_block(const erts_osenv_t *env);
HANDLE erts_service_event;
-#ifdef ERTS_SMP
-static erts_smp_tsd_key_t win32_errstr_key;
-#endif
+static erts_tsd_key_t win32_errstr_key;
-static erts_smp_atomic_t pipe_creation_counter;
+static erts_atomic_t pipe_creation_counter;
/* Results from application_type(_w) is one of */
#define APPL_NONE 0
@@ -94,10 +93,8 @@ static erts_smp_atomic_t pipe_creation_counter;
static int driver_write(long, HANDLE, byte*, int);
static int create_file_thread(struct async_io* aio, int mode);
-#ifdef ERTS_SMP
static void close_active_handle(DriverData *, HANDLE handle);
static DWORD WINAPI threaded_handle_closer(LPVOID param);
-#endif
static DWORD WINAPI threaded_reader(LPVOID param);
static DWORD WINAPI threaded_writer(LPVOID param);
static DWORD WINAPI threaded_exiter(LPVOID param);
@@ -136,7 +133,7 @@ static OSVERSIONINFO int_os_version; /* Version information for Win32. */
Disabled the use of CancelIoEx as its been seen to cause problem with some
drivers. Not sure what to blame; faulty drivers or some form of invalid use.
*/
-#if defined(ERTS_SMP) && defined(USE_CANCELIOEX)
+#if defined(USE_CANCELIOEX)
static BOOL (WINAPI *fpCancelIoEx)(HANDLE,LPOVERLAPPED);
#endif
@@ -145,7 +142,7 @@ static BOOL (WINAPI *fpCancelIoEx)(HANDLE,LPOVERLAPPED);
- call erl_start() to parse arguments and do other init
*/
-static erts_smp_atomic_t sys_misc_mem_sz;
+static erts_atomic_t sys_misc_mem_sz;
HMODULE beam_module = NULL;
@@ -189,14 +186,16 @@ void sys_primitive_init(HMODULE beam)
UWord
erts_sys_get_page_size(void)
{
- return (UWord) 4*1024; /* Guess 4 KB */
+ SYSTEM_INFO info;
+ GetSystemInfo(&info);
+ return (UWord)info.dwPageSize;
}
Uint
erts_sys_misc_mem_sz(void)
{
Uint res = (Uint) erts_check_io_size();
- res += (Uint) erts_smp_atomic_read_mb(&sys_misc_mem_sz);
+ res += (Uint) erts_atomic_read_mb(&sys_misc_mem_sz);
return res;
}
@@ -450,9 +449,7 @@ typedef struct async_io {
* the console for Windows NT).
*/
HANDLE fd; /* Handle for file or pipe. */
-#ifdef ERTS_SMP
int async_io_active; /* if true, a close of the file will signal the event in ov */
-#endif
OVERLAPPED ov; /* Control structure for overlapped reading.
* When overlapped reading is simulated with
* a thread, the fields are used as follows:
@@ -665,7 +662,7 @@ new_driver_data(ErlDrvPort port_num, int packet_bytes, int wait_objs_required, i
dp->inbuf = DRV_BUF_ALLOC(dp->inBufSize);
if (dp->inbuf == NULL)
goto buf_alloc_error;
- erts_smp_atomic_add_nob(&sys_misc_mem_sz, dp->inBufSize);
+ erts_atomic_add_nob(&sys_misc_mem_sz, dp->inBufSize);
dp->outBufSize = 0;
dp->outbuf = NULL;
dp->port_num = port_num;
@@ -691,7 +688,6 @@ buf_alloc_error:
static void
release_driver_data(DriverData* dp)
{
-#ifdef ERTS_SMP
#ifdef USE_CANCELIOEX
if (fpCancelIoEx != NULL) {
if (dp->in.thread == (HANDLE) -1 && dp->in.fd != INVALID_HANDLE_VALUE) {
@@ -734,18 +730,10 @@ release_driver_data(DriverData* dp)
DEBUGF(("...done\n"));
}
}
-#else
- if (dp->in.thread == (HANDLE) -1 && dp->in.fd != INVALID_HANDLE_VALUE) {
- CancelIo(dp->in.fd);
- }
- if (dp->out.thread == (HANDLE) -1 && dp->out.fd != INVALID_HANDLE_VALUE) {
- CancelIo(dp->out.fd);
- }
-#endif
if (dp->inbuf != NULL) {
- ASSERT(erts_smp_atomic_read_nob(&sys_misc_mem_sz) >= dp->inBufSize);
- erts_smp_atomic_add_nob(&sys_misc_mem_sz, -1*dp->inBufSize);
+ ASSERT(erts_atomic_read_nob(&sys_misc_mem_sz) >= dp->inBufSize);
+ erts_atomic_add_nob(&sys_misc_mem_sz, -1*dp->inBufSize);
DRV_BUF_FREE(dp->inbuf);
dp->inBufSize = 0;
dp->inbuf = NULL;
@@ -753,8 +741,8 @@ release_driver_data(DriverData* dp)
ASSERT(dp->inBufSize == 0);
if (dp->outbuf != NULL) {
- ASSERT(erts_smp_atomic_read_nob(&sys_misc_mem_sz) >= dp->outBufSize);
- erts_smp_atomic_add_nob(&sys_misc_mem_sz, -1*dp->outBufSize);
+ ASSERT(erts_atomic_read_nob(&sys_misc_mem_sz) >= dp->outBufSize);
+ erts_atomic_add_nob(&sys_misc_mem_sz, -1*dp->outBufSize);
DRV_BUF_FREE(dp->outbuf);
dp->outBufSize = 0;
dp->outbuf = NULL;
@@ -777,7 +765,6 @@ release_driver_data(DriverData* dp)
unrefer_driver_data(dp);
}
-#ifdef ERTS_SMP
struct handles_to_be_closed {
HANDLE handles[MAXIMUM_WAIT_OBJECTS];
@@ -870,7 +857,6 @@ threaded_handle_closer(LPVOID param)
DEBUGF(("threaded_handle_closer %p terminating\r\n", htbc));
return 0;
}
-#endif /* ERTS_SMP */
/*
* Stores input and output file descriptors in the DriverData structure,
@@ -946,9 +932,7 @@ init_async_io(DriverData *dp, AsyncIo* aio, int use_threads)
aio->flushReplyEvent = NULL;
aio->pendingError = 0;
aio->bytesTransferred = 0;
-#ifdef ERTS_SMP
aio->async_io_active = 0;
-#endif
aio->ov.hEvent = CreateManualEvent(FALSE);
if (aio->ov.hEvent == NULL)
return -1;
@@ -1029,9 +1013,7 @@ async_read_file(AsyncIo* aio, LPVOID buf, DWORD numToRead)
ResetEvent(aio->ov.hEvent);
SetEvent(aio->ioAllowed);
} else {
-#ifdef ERTS_SMP
aio->async_io_active = 1; /* Will get 0 when the event actually happened */
-#endif
if (ReadFile(aio->fd, buf, numToRead,
&aio->bytesTransferred, &aio->ov)) {
DEBUGF(("async_read_file: ReadFile() suceeded: %d bytes\n",
@@ -1079,16 +1061,12 @@ async_write_file(AsyncIo* aio, /* Pointer to async control block. */
ResetEvent(aio->ov.hEvent);
SetEvent(aio->ioAllowed);
} else {
-#ifdef ERTS_SMP
aio->async_io_active = 1; /* Will get 0 when the event actually happened */
-#endif
if (WriteFile(aio->fd, buf, numToWrite,
&aio->bytesTransferred, &aio->ov)) {
DEBUGF(("async_write_file: WriteFile() suceeded: %d bytes\n",
aio->bytesTransferred));
-#ifdef ERTS_SMP
aio->async_io_active = 0; /* The event will not be signalled */
-#endif
ResetEvent(aio->ov.hEvent);
return TRUE;
} else {
@@ -1190,7 +1168,7 @@ static int
spawn_init(void)
{
int i;
-#if defined(ERTS_SMP) && defined(USE_CANCELIOEX)
+#if defined(USE_CANCELIOEX)
HMODULE module = GetModuleHandle("kernel32");
fpCancelIoEx = (BOOL (WINAPI *)(HANDLE,LPOVERLAPPED))
((module != NULL) ? GetProcAddress(module,"CancelIoEx") : NULL);
@@ -1215,7 +1193,6 @@ spawn_start(ErlDrvPort port_num, char* utf8_name, SysDriverOpts* opts)
int ok;
int neededSelects = 0;
SECURITY_ATTRIBUTES sa = {sizeof(SECURITY_ATTRIBUTES), NULL, TRUE};
- char* envir = opts->envir;
int errno_return = -1;
wchar_t *name;
int len;
@@ -1290,29 +1267,33 @@ spawn_start(ErlDrvPort port_num, char* utf8_name, SysDriverOpts* opts)
name[i] = L'\0';
}
DEBUGF(("Spawning \"%S\"\n", name));
- envir = win_build_environment(envir); /* Always a unicode environment */
- ok = create_child_process(name,
- hChildStdin,
- hChildStdout,
- hChildStderr,
- &dp->port_pid,
- &pid,
- opts->hide_window,
- (LPVOID) envir,
- (wchar_t *) opts->wd,
- opts->spawn_type,
- (wchar_t **) opts->argv,
- &errno_return);
- CloseHandle(hChildStdin);
- CloseHandle(hChildStdout);
- if (close_child_stderr && hChildStderr != INVALID_HANDLE_VALUE &&
- hChildStderr != 0) {
- CloseHandle(hChildStderr);
- }
- erts_free(ERTS_ALC_T_TMP, name);
-
- if (envir != NULL) {
- erts_free(ERTS_ALC_T_ENVIRONMENT, envir);
+
+ {
+ void *environment_block = build_env_block(&opts->envir);
+
+ ok = create_child_process(name,
+ hChildStdin,
+ hChildStdout,
+ hChildStderr,
+ &dp->port_pid,
+ &pid,
+ opts->hide_window,
+ environment_block,
+ (wchar_t *) opts->wd,
+ opts->spawn_type,
+ (wchar_t **) opts->argv,
+ &errno_return);
+
+ CloseHandle(hChildStdin);
+ CloseHandle(hChildStdout);
+
+ if (close_child_stderr && hChildStderr != INVALID_HANDLE_VALUE &&
+ hChildStderr != 0) {
+ CloseHandle(hChildStderr);
+ }
+
+ erts_free(ERTS_ALC_T_TMP, environment_block);
+ erts_free(ERTS_ALC_T_TMP, name);
}
if (!ok) {
@@ -1363,6 +1344,41 @@ spawn_start(ErlDrvPort port_num, char* utf8_name, SysDriverOpts* opts)
return retval;
}
+struct __build_env_state {
+ WCHAR *next_variable;
+};
+
+static void build_env_foreach(void *_state, const erts_osenv_data_t *key,
+ const erts_osenv_data_t *value)
+{
+ struct __build_env_state *state = (struct __build_env_state*)(_state);
+
+ sys_memcpy(state->next_variable, key->data, key->length);
+ state->next_variable += (int)key->length / sizeof(WCHAR);
+ *state->next_variable++ = L'=';
+
+ sys_memcpy(state->next_variable, value->data, value->length);
+ state->next_variable += (int)value->length / sizeof(WCHAR);
+ *state->next_variable++ = L'\0';
+}
+
+/* Builds an environment block suitable for CreateProcessW. */
+static void *build_env_block(const erts_osenv_t *env) {
+ struct __build_env_state build_state;
+ WCHAR *env_block;
+
+ env_block = erts_alloc(ERTS_ALC_T_TMP, env->content_size +
+ (env->variable_count * sizeof(L"=\0") + sizeof(L'\0')));
+
+ build_state.next_variable = env_block;
+
+ erts_osenv_foreach_native(env, &build_state, build_env_foreach);
+
+ (*build_state.next_variable) = L'\0';
+
+ return env_block;
+}
+
static int
create_file_thread(AsyncIo* aio, int mode)
{
@@ -1762,7 +1778,7 @@ static int create_pipe(HANDLE *phRead, HANDLE *phWrite, BOOL inheritRead, BOOL o
* Otherwise, create named pipes.
*/
- calls = (UWord) erts_smp_atomic_inc_read_nob(&pipe_creation_counter);
+ calls = (UWord) erts_atomic_inc_read_nob(&pipe_creation_counter);
erts_snprintf(pipe_name, sizeof(pipe_name),
"\\\\.\\pipe\\erlang44_%d_%bpu", getpid(), calls);
@@ -2447,7 +2463,7 @@ output(ErlDrvData drv_data, char* buf, ErlDrvSizeT len)
}
dp->outBufSize = pb+len;
- erts_smp_atomic_add_nob(&sys_misc_mem_sz, dp->outBufSize);
+ erts_atomic_add_nob(&sys_misc_mem_sz, dp->outBufSize);
/*
* Store header bytes (if any).
@@ -2476,8 +2492,8 @@ output(ErlDrvData drv_data, char* buf, ErlDrvSizeT len)
} else {
dp->out.ov.Offset += pb+len; /* For vanilla driver. */
/* XXX OffsetHigh should be changed too. */
- ASSERT(erts_smp_atomic_read_nob(&sys_misc_mem_sz) >= dp->outBufSize);
- erts_smp_atomic_add_nob(&sys_misc_mem_sz, -1*dp->outBufSize);
+ ASSERT(erts_atomic_read_nob(&sys_misc_mem_sz) >= dp->outBufSize);
+ erts_atomic_add_nob(&sys_misc_mem_sz, -1*dp->outBufSize);
DRV_BUF_FREE(dp->outbuf);
dp->outBufSize = 0;
dp->outbuf = NULL;
@@ -2511,11 +2527,9 @@ ready_input(ErlDrvData drv_data, ErlDrvEvent ready_event)
int pb;
pb = dp->packet_bytes;
-#ifdef ERTS_SMP
if(dp->in.thread == (HANDLE) -1) {
dp->in.async_io_active = 0;
}
-#endif
DEBUGF(("ready_input: dp %p, event 0x%x\n", dp, ready_event));
/*
@@ -2590,8 +2604,8 @@ ready_input(ErlDrvData drv_data, ErlDrvEvent ready_event)
error = ERROR_NOT_ENOUGH_MEMORY;
break; /* Break out of loop into error handler. */
}
- ASSERT(erts_smp_atomic_read_nob(&sys_misc_mem_sz) >= dp->inBufSize);
- erts_smp_atomic_add_nob(&sys_misc_mem_sz,
+ ASSERT(erts_atomic_read_nob(&sys_misc_mem_sz) >= dp->inBufSize);
+ erts_atomic_add_nob(&sys_misc_mem_sz,
dp->totalNeeded - dp->inBufSize);
dp->inBufSize = dp->totalNeeded;
dp->inbuf = new_buf;
@@ -2680,11 +2694,9 @@ ready_output(ErlDrvData drv_data, ErlDrvEvent ready_event)
DriverData *dp = (DriverData *) drv_data;
int error;
-#ifdef ERTS_SMP
if(dp->out.thread == (HANDLE) -1) {
dp->out.async_io_active = 0;
}
-#endif
DEBUGF(("ready_output(%p, 0x%x)\n", drv_data, ready_event));
set_busy_port(dp->port_num, 0);
if (!(dp->outbuf)) {
@@ -2692,8 +2704,8 @@ ready_output(ErlDrvData drv_data, ErlDrvEvent ready_event)
write... */
return;
}
- ASSERT(erts_smp_atomic_read_nob(&sys_misc_mem_sz) >= dp->outBufSize);
- erts_smp_atomic_add_nob(&sys_misc_mem_sz, -1*dp->outBufSize);
+ ASSERT(erts_atomic_read_nob(&sys_misc_mem_sz) >= dp->outBufSize);
+ erts_atomic_add_nob(&sys_misc_mem_sz, -1*dp->outBufSize);
DRV_BUF_FREE(dp->outbuf);
dp->outBufSize = 0;
dp->outbuf = NULL;
@@ -2743,7 +2755,6 @@ sys_init_io(void)
max_files = 2*erts_ptab_max(&erts_port);
}
-#ifdef ERTS_SMP
void
erts_sys_main_thread(void)
{
@@ -2756,7 +2767,6 @@ erts_sys_main_thread(void)
WaitForSingleObject(dummy, INFINITE);
}
}
-#endif
void erts_sys_alloc_init(void)
{
@@ -2843,7 +2853,7 @@ Preload* sys_preloaded(void)
(num_preloaded+1)*sizeof(Preload));
res_name = erts_alloc(ERTS_ALC_T_PRELOADED,
(num_preloaded+1)*sizeof(unsigned));
- erts_smp_atomic_add_nob(&sys_misc_mem_sz,
+ erts_atomic_add_nob(&sys_misc_mem_sz,
(num_preloaded+1)*sizeof(Preload)
+ (num_preloaded+1)*sizeof(unsigned));
for (i = 0; i < num_preloaded; i++) {
@@ -2856,7 +2866,7 @@ Preload* sys_preloaded(void)
n = GETWORD(data);
data += 2;
preloaded[i].name = erts_alloc(ERTS_ALC_T_PRELOADED, n+1);
- erts_smp_atomic_add_nob(&sys_misc_mem_sz, n+1);
+ erts_atomic_add_nob(&sys_misc_mem_sz, n+1);
sys_memcpy(preloaded[i].name, data, n);
preloaded[i].name[n] = '\0';
data += n;
@@ -2938,11 +2948,7 @@ sys_get_key(int fd)
char* win32_errorstr(int error)
{
-#ifdef SMP
- LPTSTR lpBufPtr = erts_smp_tsd_get(win32_errstr_key);
-#else
- static LPTSTR lpBufPtr = NULL;
-#endif
+ LPTSTR lpBufPtr = erts_tsd_get(win32_errstr_key);
if (lpBufPtr) {
LocalFree(lpBufPtr);
}
@@ -2956,9 +2962,7 @@ char* win32_errorstr(int error)
0,
NULL);
SetLastError(error);
-#ifdef ERTS_SMP
- erts_smp_tsd_set(win32_errstr_key,lpBufPtr);
-#endif
+ erts_tsd_set(win32_errstr_key,lpBufPtr);
return lpBufPtr;
}
@@ -3131,7 +3135,6 @@ check_supported_os_version(void)
#endif
}
-#ifdef USE_THREADS
typedef struct {
int sched_bind_data;
@@ -3176,19 +3179,15 @@ thr_create_prepare_child(void *vtcdp)
erts_sched_bind_atthrcreate_child(tcdp->sched_bind_data);
}
-#endif /* USE_THREADS */
void
erts_sys_pre_init(void)
{
-#ifdef USE_THREADS
erts_thr_init_data_t eid = ERTS_THR_INIT_DATA_DEF_INITER;
-#endif
int_os_version.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&int_os_version);
check_supported_os_version();
-#ifdef USE_THREADS
eid.thread_create_child_func = thr_create_prepare_child;
/* Before creation in parent */
eid.thread_create_prepare_func = thr_create_prepare;
@@ -3209,11 +3208,10 @@ erts_sys_pre_init(void)
erts_lc_init();
#endif
-#endif /* USE_THREADS */
erts_init_sys_time_sup();
- erts_smp_atomic_init_nob(&sys_misc_mem_sz, 0);
+ erts_atomic_init_nob(&sys_misc_mem_sz, 0);
}
void noinherit_std_handle(DWORD type)
@@ -3233,11 +3231,9 @@ void erl_sys_init(void)
noinherit_std_handle(STD_INPUT_HANDLE);
noinherit_std_handle(STD_ERROR_HANDLE);
-#ifdef ERTS_SMP
- erts_smp_tsd_key_create(&win32_errstr_key,"win32_errstr_key");
+ erts_tsd_key_create(&win32_errstr_key,"win32_errstr_key");
InitializeCriticalSection(&htbc_lock);
-#endif
- erts_smp_atomic_init_nob(&pipe_creation_counter,0);
+ erts_atomic_init_nob(&pipe_creation_counter,0);
/*
* Test if we have named pipes or not.
*/
@@ -3280,42 +3276,16 @@ void erl_sys_init(void)
SetStdHandle(STD_ERROR_HANDLE, GetStdHandle(STD_OUTPUT_HANDLE));
}
erts_sys_init_float();
- erts_init_check_io();
/* Suppress windows error message popups */
SetErrorMode(SetErrorMode(0) |
SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX);
}
+void erts_poll_late_init(void);
void
erl_sys_late_init(void)
{
/* do nothing */
+ erts_poll_late_init();
}
-
-void
-erts_sys_schedule_interrupt(int set)
-{
- erts_check_io_interrupt(set);
-}
-
-#ifdef ERTS_SMP
-void
-erts_sys_schedule_interrupt_timed(int set, ErtsMonotonicTime timeout_time)
-{
- erts_check_io_interrupt_timed(set, timeout_time);
-}
-#endif
-
-/*
- * Called from schedule() when it runs out of runnable processes,
- * or when Erlang code has performed INPUT_REDUCTIONS reduction
- * steps. runnable == 0 iff there are no runnable Erlang processes.
- */
-void
-erl_sys_schedule(int runnable)
-{
- erts_check_io(!runnable);
- ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking());
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 23:28:29 +0000