本文整理汇总了C++中caml_sys_error函数的典型用法代码示例。如果您正苦于以下问题：C++ caml_sys_error函数的具体用法？C++ caml_sys_error怎么用？C++ caml_sys_error使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了caml_sys_error函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: caml_sys_getcwd
CAMLprim value caml_sys_getcwd(value unit)
{
char buff[4096];
#ifdef HAS_GETCWD
if (getcwd(buff, sizeof(buff)) == 0) caml_sys_error(NO_ARG);
#else
if (getwd(buff) == 0) caml_sys_error(NO_ARG);
#endif /* HAS_GETCWD */
return caml_copy_string(buff);
}示例2: caml_seek_out
CAMLexport void caml_seek_out(struct channel *channel, file_offset dest)
{
caml_flush(channel);
caml_sys_error(NO_ARG);
caml_leave_blocking_section();
channel->offset = dest;
}示例3: caml_sys_remove
CAMLprim value caml_sys_remove(value name)
{
int ret;
ret = unlink(String_val(name));
if (ret != 0) caml_sys_error(name);
return Val_unit;
}示例4: caml_sys_is_directory
CAMLprim value caml_sys_is_directory(value name)
{
CAMLparam1(name);
#ifdef _WIN32
struct _stati64 st;
#else
struct stat st;
#endif
char * p;
int ret;
p = caml_strdup(String_val(name));
caml_enter_blocking_section();
#ifdef _WIN32
ret = _stati64(p, &st);
#else
ret = stat(p, &st);
#endif
caml_leave_blocking_section();
caml_stat_free(p);
if (ret == -1) caml_sys_error(name);
#ifdef S_ISDIR
CAMLreturn(Val_bool(S_ISDIR(st.st_mode)));
#else
CAMLreturn(Val_bool(st.st_mode & S_IFDIR));
#endif
}示例5: caml_ml_close_channel
CAMLprim value caml_ml_close_channel(value vchannel)
{
int result;
int do_syscall;
int fd;
/* For output channels, must have flushed before */
struct channel * channel = Channel(vchannel);
if (channel->fd != -1){
fd = channel->fd;
channel->fd = -1;
do_syscall = 1;
}else{
do_syscall = 0;
result = 0;
}
/* Ensure that every read or write on the channel will cause an
immediate caml_flush_partial or caml_refill, thus raising a Sys_error
exception */
channel->curr = channel->max = channel->end;
if (do_syscall) {
caml_enter_blocking_section();
result = close(fd);
caml_leave_blocking_section();
}
if (result == -1) caml_sys_error (NO_ARG);
return Val_unit;
}示例6: caml_sys_io_error
CAMLexport void caml_sys_io_error(value arg)
{
if (errno == EAGAIN || errno == EWOULDBLOCK) {
caml_raise_sys_blocked_io();
} else {
caml_sys_error(arg);
}
}示例7: caml_ml_set_binary_mode
CAMLprim value caml_ml_set_binary_mode(value vchannel, value mode)
{
#if defined(_WIN32) || defined(__CYGWIN__)
struct channel * channel = Channel(vchannel);
if (setmode(channel->fd, Bool_val(mode) ? O_BINARY : O_TEXT) == -1)
caml_sys_error(NO_ARG);
#endif
return Val_unit;
}示例8: caml_sys_is_directory
CAMLprim value caml_sys_is_directory(value name)
{
struct stat st;
if (stat(String_val(name), &st) == -1) caml_sys_error(name);
#ifdef S_ISDIR
return Val_bool(S_ISDIR(st.st_mode));
#else
return Val_bool(st.st_mode & S_IFDIR);
#endif
}示例9: caml_channel_size
CAMLexport file_offset caml_channel_size(struct channel *channel)
{
file_offset end;
end = lseek(channel->fd, 0, SEEK_END);
if (end == -1 ||
lseek(channel->fd, channel->offset, SEEK_SET) != channel->offset) {
caml_sys_error(NO_ARG);
}
return end;
}示例10: caml_seek_in
CAMLexport void caml_seek_in(struct channel *channel, file_offset dest)
{
if (dest >= channel->offset - (channel->max - channel->buff) &&
dest <= channel->offset) {
channel->curr = channel->max - (channel->offset - dest);
} else {
if (lseek(channel->fd, dest, SEEK_SET) != dest) caml_sys_error(NO_ARG);
channel->offset = dest;
channel->curr = channel->max = channel->buff;
}
}示例11: caml_seek_out
CAMLexport void caml_seek_out(struct channel *channel, file_offset dest)
{
caml_flush(channel);
caml_enter_blocking_section();
if (lseek(channel->fd, dest, SEEK_SET) != dest) {
caml_leave_blocking_section();
caml_sys_error(NO_ARG);
}
caml_leave_blocking_section();
channel->offset = dest;
}示例12: caml_seek_in
CAMLexport void caml_seek_in(struct channel *channel, file_offset dest)
{
if (dest >= channel->offset - (channel->max - channel->buff) &&
dest <= channel->offset) {
channel->curr = channel->max - (channel->offset - dest);
} else {
caml_sys_error(NO_ARG);
caml_leave_blocking_section();
channel->offset = dest;
channel->curr = channel->max = channel->buff;
}
}示例13: caml_sys_chdir
CAMLprim value caml_sys_chdir(value dirname)
{
CAMLparam1(dirname);
char * p;
int ret;
p = caml_strdup(String_val(dirname));
caml_enter_blocking_section();
ret = chdir(p);
caml_leave_blocking_section();
caml_stat_free(p);
if (ret != 0) caml_sys_error(dirname);
CAMLreturn(Val_unit);
}示例14: caml_sys_remove
CAMLprim value caml_sys_remove(value name)
{
CAMLparam1(name);
char * p;
int ret;
p = caml_strdup(String_val(name));
caml_enter_blocking_section();
ret = unlink(p);
caml_leave_blocking_section();
caml_stat_free(p);
if (ret != 0) caml_sys_error(name);
CAMLreturn(Val_unit);
}示例15: caml_sys_rename
CAMLprim value caml_sys_rename(value oldname, value newname)
{
char * p_old;
char * p_new;
int ret;
p_old = caml_strdup(String_val(oldname));
p_new = caml_strdup(String_val(newname));
caml_enter_blocking_section();
ret = rename(p_old, p_new);
caml_leave_blocking_section();
caml_stat_free(p_new);
caml_stat_free(p_old);
if (ret != 0)
caml_sys_error(NO_ARG);
return Val_unit;
}