| Message ID | 1327300228-26386-2-git-send-email-vapier@gentoo.org |
|---|---|
| State | Accepted |
| Delegated to: | Mike Frysinger |
| Headers | show |
Hi Mike, On Sun, Jan 22, 2012 at 10:30 PM, Mike Frysinger <vapier@gentoo.org> wrote: > Follow up patches want to be able to seek fd's. > > Signed-off-by: Mike Frysinger <vapier@gentoo.org> > --- > arch/sandbox/cpu/os.c | 5 +++++ > include/os.h | 10 ++++++++++ > 2 files changed, 15 insertions(+), 0 deletions(-) > > diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c > index 093e7dc..6e257ff 100644 > --- a/arch/sandbox/cpu/os.c > +++ b/arch/sandbox/cpu/os.c > @@ -45,6 +45,11 @@ ssize_t os_write(int fd, const void *buf, size_t count) > return write(fd, buf, count); > } > > +off_t os_lseek(int fd, off_t offset, int whence) > +{ > + return lseek(fd, offset, whence); > +} I think we need some sort of #define setup for the whence parameter in the header file, like I did with open(). > + > int os_open(const char *pathname, int flags) > { > return open(pathname, flags); > diff --git a/include/os.h b/include/os.h > index c17a8a5..d182f40 100644 > --- a/include/os.h > +++ b/include/os.h > @@ -49,6 +49,16 @@ ssize_t os_read(int fd, void *buf, size_t count); > ssize_t os_write(int fd, const void *buf, size_t count); > > /** > + * Access to the OS lseek() system call > + * > + * \param fd File descriptor as returned by os_open() > + * \param offset File offset (based on whence) > + * \param whence Position offset is relative to Document the values of this param, since people can't really assume the mirror lseek() unless we tell them. > + * \return new file offset > + */ > +off_t os_lseek(int fd, off_t offset, int whence); > + > +/** > * Access to the OS open() system call > * > * \param pathname Pathname of file to open > -- > 1.7.8.3 > Regards, Simon
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c index 093e7dc..6e257ff 100644 --- a/arch/sandbox/cpu/os.c +++ b/arch/sandbox/cpu/os.c @@ -45,6 +45,11 @@ ssize_t os_write(int fd, const void *buf, size_t count) return write(fd, buf, count); } +off_t os_lseek(int fd, off_t offset, int whence) +{ + return lseek(fd, offset, whence); +} + int os_open(const char *pathname, int flags) { return open(pathname, flags); diff --git a/include/os.h b/include/os.h index c17a8a5..d182f40 100644 --- a/include/os.h +++ b/include/os.h @@ -49,6 +49,16 @@ ssize_t os_read(int fd, void *buf, size_t count); ssize_t os_write(int fd, const void *buf, size_t count); /** + * Access to the OS lseek() system call + * + * \param fd File descriptor as returned by os_open() + * \param offset File offset (based on whence) + * \param whence Position offset is relative to + * \return new file offset + */ +off_t os_lseek(int fd, off_t offset, int whence); + +/** * Access to the OS open() system call * * \param pathname Pathname of file to open
Follow up patches want to be able to seek fd's. Signed-off-by: Mike Frysinger <vapier@gentoo.org> --- arch/sandbox/cpu/os.c | 5 +++++ include/os.h | 10 ++++++++++ 2 files changed, 15 insertions(+), 0 deletions(-)