diff options
Diffstat (limited to 'erts/emulator/sys/ose/sys.c')
| -rw-r--r-- | erts/emulator/sys/ose/sys.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/erts/emulator/sys/ose/sys.c b/erts/emulator/sys/ose/sys.c index 6e55301d6e..ba8851e203 100644 --- a/erts/emulator/sys/ose/sys.c +++ b/erts/emulator/sys/ose/sys.c @@ -892,7 +892,7 @@ OS_PROCESS(fd_writer_process) { SysIOVec *iov; int iovlen; int iovcnt; - int n = 0, i; + int n = 0, i = 0, offset = 0; size_t p; /* fprintf(stderr,"0x%x: fd_writer, receive\n", current_process()); */ sig = receive(sigsel); @@ -913,12 +913,22 @@ OS_PROCESS(fd_writer_process) { driver_pdl_unlock(driver_data[fd].pdl); if (iovlen > 0) { - for (i = 0; i < iovcnt; i++) { - res = write(fd, iov[i].iov_base, - iov[i].iov_len > 256 ? 256 : iov[i].iov_len); + while(i < iovcnt) { + /* We only write 256 chars at the time in order to + not overflow the stdout process */ + if ((iov[i].iov_len-offset) > 256) { + res = write(fd, iov[i].iov_base+offset, 256); if (res < 0) break; - n += res; + offset += res; + } else { + res = write(fd, iov[i].iov_base+offset, iov[i].iov_len-offset); + if (res < 0) + break; + offset = 0; + i++; + } + n += res; } if (res > 0) res = n; |