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| author | Tuncer Ayaz <[email protected]> | 2011-01-13 12:36:14 +0100 |
|---|---|---|
| committer | Lukas Larsson <[email protected]> | 2011-11-29 14:30:35 +0100 |
| commit | 195e1f19b06095f39a4fb0da46dfab2ec5b10e9a (patch) | |
| tree | 8f4a8c587b72c3a20d18b4cb6ccd7d1d52eb6286 /erts/emulator/drivers/common/erl_efile.h | |
| parent | 7292c3d9f5285592aa4de996f6f106cd365d7895 (diff) | |
| download | otp-195e1f19b06095f39a4fb0da46dfab2ec5b10e9a.tar.gz otp-195e1f19b06095f39a4fb0da46dfab2ec5b10e9a.tar.bz2 otp-195e1f19b06095f39a4fb0da46dfab2ec5b10e9a.zip | |
Implement file:sendfile
Allow Erlang code to use sendfile() where available by wrapping it as
file:sendfile/4 and file:sendfile/2.
sendfile(2) - Linux man page:
"sendfile() copies data between one file descriptor and another.
Because this copying is done within the kernel, sendfile() is more
efficient than the combination of read(2) and write(2), which would
require transferring data to and from user space."
Diffstat (limited to 'erts/emulator/drivers/common/erl_efile.h')
| -rw-r--r-- | erts/emulator/drivers/common/erl_efile.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/erts/emulator/drivers/common/erl_efile.h b/erts/emulator/drivers/common/erl_efile.h index 3097ded3f1..3c6c2ec2db 100644 --- a/erts/emulator/drivers/common/erl_efile.h +++ b/erts/emulator/drivers/common/erl_efile.h @@ -162,3 +162,5 @@ int efile_symlink(Efile_error* errInfo, char* old, char* new); int efile_may_openfile(Efile_error* errInfo, char *name); int efile_fadvise(Efile_error* errInfo, int fd, Sint64 offset, Sint64 length, int advise); +int efile_sendfile(Efile_error* errInfo, int in_fd, int out_fd, off_t *offset, + size_t *count); |