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| author | Lukas Larsson <[email protected]> | 2011-11-15 10:32:03 +0100 |
|---|---|---|
| committer | Lukas Larsson <[email protected]> | 2011-12-01 14:10:04 +0100 |
| commit | a508d712553761d3cdc69d5e14c09ba3a6530d7a (patch) | |
| tree | 034da8b7bad3879135a38f7b4afc4b27dbefbdca | |
| parent | 23d62043ebf4bfad900935c650e8fcb3f2e6f88c (diff) | |
| download | otp-a508d712553761d3cdc69d5e14c09ba3a6530d7a.tar.gz otp-a508d712553761d3cdc69d5e14c09ba3a6530d7a.tar.bz2 otp-a508d712553761d3cdc69d5e14c09ba3a6530d7a.zip | |
Fix freebsd support for sendfile
| -rw-r--r-- | erts/emulator/drivers/unix/unix_efile.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/erts/emulator/drivers/unix/unix_efile.c b/erts/emulator/drivers/unix/unix_efile.c index 911ec63588..14b7a5cffa 100644 --- a/erts/emulator/drivers/unix/unix_efile.c +++ b/erts/emulator/drivers/unix/unix_efile.c @@ -1511,9 +1511,22 @@ efile_sendfile(Efile_error* errInfo, int in_fd, int out_fd, *nbytes = written; return check_error(retval, errInfo); #elif defined(__FreeBSD__) || defined(__DragonFly__) - off_t len = 0; - int retval = sendfile(in_fd, out_fd, *offset, *nbytes, NULL, &len, 0); - *nbytes = len; +#define SENDFILE_CHUNK_SIZE ((1 << (8*SIZEOF_SIZE_T)) - 1) + off_t len; + int retval; + do { + if (*nbytes > SENDFILE_CHUNK_SIZE) + retval = sendfile(in_fd, out_fd, *offset, SENDFILE_CHUNK_SIZE, + NULL, &len, 0); + else + retval = sendfile(in_fd, out_fd, *offset, *nbytes, NULL, &len, 0); + if (retval != -1 || errno == EAGAIN || errno == EINTR) { + *offset += len; + *nbytes -= len; + written += len; + } + } while(len == SENDFILE_CHUNK_SIZE); + *nbytes = written; return check_error(retval, errInfo); #endif } |