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os/fileio: Add msgpack_file_write function

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ZyX
2017-07-04 17:03:07 +03:00
parent 94bd0f9915
commit 5ab9e9f617
2 changed files with 37 additions and 0 deletions
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21
src/nvim/os/fileio.c
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@@ -26,6 +26,7 @@
#include "nvim/globals.h"
#include "nvim/rbuffer.h"
#include "nvim/macros.h"
#include "nvim/message.h"
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "os/fileio.c.generated.h"
@@ -345,3 +346,23 @@ ptrdiff_t file_skip(FileDescriptor *const fp, const size_t size)
return (ptrdiff_t)read_bytes;
}
/// Msgpack callback for writing to a file
///
/// @param data File to write to.
/// @param[in] buf Data to write.
/// @param[in] len Length of the data to write.
///
/// @return 0 in case of success, -1 in case of error.
int msgpack_file_write(void *data, const char *buf, size_t len)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT
{
assert(len < PTRDIFF_MAX);
const ptrdiff_t written_bytes = file_write((FileDescriptor *)data, buf, len);
if (written_bytes < 0) {
emsgf(_("E5420: Failed to write to file: %s"),
os_strerror((int)written_bytes));
return -1;
}
return 0;
}