diff options
Diffstat (limited to 'erts/emulator/drivers/unix/unix_efile.c')
| -rw-r--r-- | erts/emulator/drivers/unix/unix_efile.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/erts/emulator/drivers/unix/unix_efile.c b/erts/emulator/drivers/unix/unix_efile.c index 558651fff9..878beb055b 100644 --- a/erts/emulator/drivers/unix/unix_efile.c +++ b/erts/emulator/drivers/unix/unix_efile.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1997-2012. All Rights Reserved. + * Copyright Ericsson AB 1997-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -102,6 +102,11 @@ check_error(int result, Efile_error *errInfo) } int +efile_init() { + return 1; +} + +int efile_mkdir(Efile_error* errInfo, /* Where to return error codes. */ char* name) /* Name of directory to create. */ { @@ -355,7 +360,12 @@ efile_openfile(Efile_error* errInfo, /* Where to return error codes. */ int fd; int mode; /* Open mode. */ - if (stat(name, &statbuf) >= 0 && !ISREG(statbuf)) { + if (stat(name, &statbuf) < 0) { + /* statbuf is undefined: if the caller depends on it, + i.e. invoke_read_file(), fail the call immediately */ + if (pSize && flags == EFILE_MODE_READ) + return check_error(-1, errInfo); + } else if (!ISREG(statbuf)) { /* * For UNIX only, here is some ugly code to allow * /dev/null to be opened as a file. @@ -405,6 +415,15 @@ efile_openfile(Efile_error* errInfo, /* Where to return error codes. */ mode |= O_EXCL; } + if (flags & EFILE_MODE_SYNC) { +#ifdef O_SYNC + mode |= O_SYNC; +#else + errno = ENOTSUP; + return check_error(-1, errInfo); +#endif + } + fd = open(name, mode, FILE_MODE); if (!check_error(fd, errInfo)) @@ -620,7 +639,8 @@ efile_writev(Efile_error* errInfo, /* Where to return error codes */ do { w = write(fd, iov[cnt].iov_base, iov[cnt].iov_len); } while (w < 0 && errno == EINTR); - ASSERT(w <= iov[cnt].iov_len); + ASSERT(w <= iov[cnt].iov_len || + (w == -1 && errno != EINTR)); } if (w < 0) return check_error(-1, errInfo); /* Move forward to next buffer to write */ @@ -629,7 +649,7 @@ efile_writev(Efile_error* errInfo, /* Where to return error codes */ if (w < iov[cnt].iov_len) { /* Adjust the buffer for next write */ iov[cnt].iov_len -= w; - iov[cnt].iov_base += w; + iov[cnt].iov_base = ((char *)iov[cnt].iov_base) + w; w = 0; break; } else { |