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vlib: extract C. calls from builtin.v to builtin.c.v

pull/7342/head
Delyan Angelov 2020-12-15 09:41:02 +02:00
parent 947ceb1595
commit 14d55d26a3
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GPG Key ID: 66886C0F12D595ED
2 changed files with 240 additions and 244 deletions
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240
vlib/builtin/builtin.c.v 100644
View File

@ -0,0 +1,240 @@
module builtin
type FnExitCb = fn()
fn C.atexit(f FnExitCb) int
pub fn exit(code int) {
C.exit(code)
}
// panic_debug - private function that V uses for panics, -cg/-g is passed
// recent versions of tcc print nicer backtraces automatically
// NB: the duplication here is because tcc_backtrace should be called directly
// inside the panic functions.
fn panic_debug(line_no int, file string, mod string, fn_name string, s string) {
// NB: the order here is important for a stabler test output
// module is less likely to change than function, etc...
// During edits, the line number will change most frequently,
// so it is last
eprintln('================ V panic ================')
eprintln(' module: $mod')
eprintln(' function: ${fn_name}()')
eprintln(' message: $s')
eprintln(' file: $file')
eprintln(' line: ' + line_no.str())
eprintln('=========================================')
$if exit_after_panic_message ? {
C.exit(1)
} $else {
$if no_backtrace ? {
C.exit(1)
} $else {
$if tinyc {
$if panics_break_into_debugger ? {
break_if_debugger_attached()
} $else {
C.tcc_backtrace('Backtrace')
}
C.exit(1)
}
print_backtrace_skipping_top_frames(1)
$if panics_break_into_debugger ? {
break_if_debugger_attached()
}
C.exit(1)
}
}
}
// panic prints a nice error message, then exits the process with exit code of 1.
// It also shows a backtrace on most platforms.
pub fn panic(s string) {
eprintln('V panic: $s')
$if exit_after_panic_message ? {
C.exit(1)
} $else {
$if no_backtrace ? {
C.exit(1)
} $else {
$if tinyc {
$if panics_break_into_debugger ? {
break_if_debugger_attached()
} $else {
C.tcc_backtrace('Backtrace')
}
C.exit(1)
}
print_backtrace_skipping_top_frames(1)
$if panics_break_into_debugger ? {
break_if_debugger_attached()
}
C.exit(1)
}
}
}
// eprintln prints a message with a line end, to stderr. Both stderr and stdout are flushed.
pub fn eprintln(s string) {
// eprintln is used in panics, so it should not fail at all
if s.str == 0 {
eprintln('eprintln(NIL)')
}
C.fflush(C.stdout)
C.fflush(C.stderr)
C.write(2, s.str, s.len)
C.write(2, c'\n', 1)
C.fflush(C.stderr)
}
// eprint prints a message to stderr. Both stderr and stdout are flushed.
pub fn eprint(s string) {
if s.str == 0 {
eprint('eprint(NIL)')
}
C.fflush(C.stdout)
C.fflush(C.stderr)
C.write(2, s.str, s.len)
C.fflush(C.stderr)
}
// print prints a message to stdout
pub fn print(s string) {
C.write(1, s.str, s.len)
}
//#include "@VROOT/vlib/darwin/darwin.m"
//fn C.nsstring2(s string) voidptr
//fn C.NSLog(x voidptr)
//#include <asl.h>
// fn C.asl_log(voidptr, voidptr, int, charptr)
pub fn println(s string) {
$if windows {
print(s)
print('\n')
} $else {
// For debugging .app applications (no way to read stdout) so that it's printed to macOS Console
/*
$if macos {
C.asl_log(0, 0, C.ASL_LEVEL_ERR, s.str)
}
*/
// TODO: a syscall sys_write on linux works, except for the v repl.
// Probably it is a stdio buffering issue. Needs more testing...
// $if linux {
// $if !android {
// snl := s + '\n'
// C.syscall(/* sys_write */ 1, /* stdout_value */ 1, snl.str, s.len+1)
// return
// }
// }
C.printf('%.*s\n', s.len, s.str)
}
}
[unsafe]
pub fn malloc(n int) byteptr {
if n <= 0 {
panic('malloc(<=0)')
}
$if prealloc {
//println('p')
res := g_m2_ptr
unsafe {
g_m2_ptr += n
}
nr_mallocs++
return res
} $else {
ptr := unsafe {C.malloc(n)}
if ptr == 0 {
panic('malloc($n) failed')
}
return ptr
}
/*
TODO
#ifdef VPLAY
if n > 10000 {
panic('allocating more than 10 KB is not allowed in the playground')
}
#endif
#ifdef DEBUG_ALLOC
total_m += n
println('\n\n\nmalloc($n) total=$total_m')
print_backtrace()
#endif
*/
}
//#include <malloc/malloc.h>
//fn malloc_size(b byteptr) int
[unsafe]
pub fn v_realloc(b byteptr, n int) byteptr {
$if prealloc {
unsafe {
new_ptr := malloc(n)
size := 0 //malloc_size(b)
C.memcpy(new_ptr, b, size)
return new_ptr
}
} $else {
ptr := unsafe {C.realloc(b, n)}
if ptr == 0 {
panic('realloc($n) failed')
}
return ptr
}
}
[unsafe]
pub fn v_calloc(n int) byteptr {
return C.calloc(1, n)
}
[unsafe]
pub fn vcalloc(n int) byteptr {
if n < 0 {
panic('calloc(<=0)')
} else if n == 0 {
return byteptr(0)
}
return C.calloc(1, n)
}
[unsafe]
pub fn free(ptr voidptr) {
$if prealloc {
return
}
C.free(ptr)
}
pub fn memdup(src voidptr, sz int) voidptr {
if sz == 0 {
return vcalloc(1)
}
unsafe {
mem := malloc(sz)
return C.memcpy(mem, src, sz)
}
}
fn v_ptr_free(ptr voidptr) {
$if prealloc {
return
}
C.free(ptr)
}
pub fn is_atty(fd int) int {
$if windows {
mut mode := u32(0)
osfh := voidptr(C._get_osfhandle(fd))
C.GetConsoleMode(osfh, voidptr(&mode))
return int(mode)
} $else {
return C.isatty(fd)
}
}

244
vlib/builtin/builtin.v
View File

@ -8,13 +8,6 @@ __global (
g_m2_ptr byteptr g_m2_ptr byteptr
) )
type FnExitCb = fn()
fn C.atexit(f FnExitCb) int
pub fn exit(code int) {
C.exit(code)
}
// isnil returns true if an object is nil (only for C objects). // isnil returns true if an object is nil (only for C objects).
pub fn isnil(v voidptr) bool { pub fn isnil(v voidptr) bool {
return v == 0 return v == 0
@ -36,248 +29,11 @@ pub fn print_backtrace() {
print_backtrace_skipping_top_frames(2) print_backtrace_skipping_top_frames(2)
} }
// panic_debug - private function that V uses for panics, -cg/-g is passed
// recent versions of tcc print nicer backtraces automatically
// NB: the duplication here is because tcc_backtrace should be called directly
// inside the panic functions.
fn panic_debug(line_no int, file string, mod string, fn_name string, s string) {
// NB: the order here is important for a stabler test output
// module is less likely to change than function, etc...
// During edits, the line number will change most frequently,
// so it is last
eprintln('================ V panic ================')
eprintln(' module: $mod')
eprintln(' function: ${fn_name}()')
eprintln(' message: $s')
eprintln(' file: $file')
eprintln(' line: ' + line_no.str())
eprintln('=========================================')
$if exit_after_panic_message ? {
C.exit(1)
} $else {
$if no_backtrace ? {
C.exit(1)
} $else {
$if tinyc {
$if panics_break_into_debugger ? {
break_if_debugger_attached()
} $else {
C.tcc_backtrace('Backtrace')
}
C.exit(1)
}
print_backtrace_skipping_top_frames(1)
$if panics_break_into_debugger ? {
break_if_debugger_attached()
}
C.exit(1)
}
}
}
// panic prints a nice error message, then exits the process with exit code of 1.
// It also shows a backtrace on most platforms.
pub fn panic(s string) {
eprintln('V panic: $s')
$if exit_after_panic_message ? {
C.exit(1)
} $else {
$if no_backtrace ? {
C.exit(1)
} $else {
$if tinyc {
$if panics_break_into_debugger ? {
break_if_debugger_attached()
} $else {
C.tcc_backtrace('Backtrace')
}
C.exit(1)
}
print_backtrace_skipping_top_frames(1)
$if panics_break_into_debugger ? {
break_if_debugger_attached()
}
C.exit(1)
}
}
}
// eprintln prints a message with a line end, to stderr. Both stderr and stdout are flushed.
pub fn eprintln(s string) {
// eprintln is used in panics, so it should not fail at all
if s.str == 0 {
eprintln('eprintln(NIL)')
}
C.fflush(C.stdout)
C.fflush(C.stderr)
C.write(2, s.str, s.len)
C.write(2, c'\n', 1)
C.fflush(C.stderr)
}
// eprint prints a message to stderr. Both stderr and stdout are flushed.
pub fn eprint(s string) {
if s.str == 0 {
eprint('eprint(NIL)')
}
C.fflush(C.stdout)
C.fflush(C.stderr)
C.write(2, s.str, s.len)
C.fflush(C.stderr)
}
// print prints a message to stdout
pub fn print(s string) {
C.write(1, s.str, s.len)
}
const (
new_line_character = '\n'
)
//#include "@VROOT/vlib/darwin/darwin.m"
//fn C.nsstring2(s string) voidptr
//fn C.NSLog(x voidptr)
//#include <asl.h>
fn C.asl_log(voidptr, voidptr, int, charptr)
pub fn println(s string) {
$if windows {
print(s)
print(new_line_character)
} $else {
// For debugging .app applications (no way to read stdout) so that it's printed to macOS Console
/*
$if macos {
C.asl_log(0, 0, C.ASL_LEVEL_ERR, s.str)
}
*/
// TODO: a syscall sys_write on linux works, except for the v repl.
// Probably it is a stdio buffering issue. Needs more testing...
// $if linux {
// $if !android {
// snl := s + '\n'
// C.syscall(/* sys_write */ 1, /* stdout_value */ 1, snl.str, s.len+1)
// return
// }
// }
C.printf('%.*s\n', s.len, s.str)
}
}
__global ( __global (
total_m = i64(0) total_m = i64(0)
nr_mallocs = int(0) nr_mallocs = int(0)
) )
[unsafe]
pub fn malloc(n int) byteptr {
if n <= 0 {
panic('malloc(<=0)')
}
$if prealloc {
//println('p')
res := g_m2_ptr
unsafe {
g_m2_ptr += n
}
nr_mallocs++
return res
} $else {
ptr := unsafe {C.malloc(n)}
if ptr == 0 {
panic('malloc($n) failed')
}
return ptr
}
/*
TODO
#ifdef VPLAY
if n > 10000 {
panic('allocating more than 10 KB is not allowed in the playground')
}
#endif
#ifdef DEBUG_ALLOC
total_m += n
println('\n\n\nmalloc($n) total=$total_m')
print_backtrace()
#endif
*/
}
//#include <malloc/malloc.h>
//fn malloc_size(b byteptr) int
[unsafe]
pub fn v_realloc(b byteptr, n int) byteptr {
$if prealloc {
unsafe {
new_ptr := malloc(n)
size := 0 //malloc_size(b)
C.memcpy(new_ptr, b, size)
return new_ptr
}
} $else {
ptr := unsafe {C.realloc(b, n)}
if ptr == 0 {
panic('realloc($n) failed')
}
return ptr
}
}
[unsafe]
pub fn v_calloc(n int) byteptr {
return C.calloc(1, n)
}
[unsafe]
pub fn vcalloc(n int) byteptr {
if n < 0 {
panic('calloc(<=0)')
} else if n == 0 {
return byteptr(0)
}
return C.calloc(1, n)
}
[unsafe]
pub fn free(ptr voidptr) {
$if prealloc {
return
}
C.free(ptr)
}
pub fn memdup(src voidptr, sz int) voidptr {
if sz == 0 {
return vcalloc(1)
}
unsafe {
mem := malloc(sz)
return C.memcpy(mem, src, sz)
}
}
fn v_ptr_free(ptr voidptr) {
$if prealloc {
return
}
C.free(ptr)
}
pub fn is_atty(fd int) int {
$if windows {
mut mode := u32(0)
osfh := voidptr(C._get_osfhandle(fd))
C.GetConsoleMode(osfh, voidptr(&mode))
return int(mode)
} $else {
return C.isatty(fd)
}
}
fn __as_cast(obj voidptr, obj_type int, expected_type int) voidptr { fn __as_cast(obj voidptr, obj_type int, expected_type int) voidptr {
if obj_type != expected_type { if obj_type != expected_type {
panic('as cast: cannot cast $obj_type to $expected_type') panic('as cast: cannot cast $obj_type to $expected_type')