diff options
author | Jari Vetoniemi <mailroxas@gmail.com> | 2018-10-21 16:23:23 +0300 |
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committer | Jari Vetoniemi <mailroxas@gmail.com> | 2018-10-21 16:23:23 +0300 |
commit | 75f9922f6d3c1e5bbbe7b90ca170392cc0f5efbc (patch) | |
tree | d79e445e87ae9a55e146c6c3b46fef6f238d23e7 /src/io/io-uio.c | |
parent | d81411896f140981400e4fbf4aafacdbabad96cd (diff) |
Refactor io utils, add *-address-rw tools
Namespace io_ stuff into mem_io_ to be less likely to collision with
anything else. Add io-stream utility for working with streams instead of
direct buffers. Add address-rw tools for simple memory read/write, where
regions aren't needed.
Diffstat (limited to 'src/io/io-uio.c')
-rw-r--r-- | src/io/io-uio.c | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/src/io/io-uio.c b/src/io/io-uio.c deleted file mode 100644 index dd9f873..0000000 --- a/src/io/io-uio.c +++ /dev/null @@ -1,41 +0,0 @@ -#include "io.h" -#include <stdint.h> -#include <err.h> -#include <sys/uio.h> - -static size_t -io_uio_do(const struct io *io, const void *ptr, const size_t offset, const size_t size, ssize_t (*iofun)(pid_t, const struct iovec*, unsigned long, const struct iovec*, unsigned long, unsigned long)) -{ - const struct iovec lio = { .iov_base = (void*)ptr, .iov_len = size }; - const struct iovec rio = { .iov_base = (void*)(intptr_t)offset, .iov_len = size }; - return iofun(io->pid, &lio, 1, &rio, 1, 0); -} - -static size_t -io_uio_write(const struct io *io, const void *ptr, const size_t offset, const size_t size) -{ - const size_t ret = io_uio_do(io, ptr, offset, size, process_vm_writev); - - if (ret == (size_t)-1) - warn("process_vm_writev(%u)", io->pid); - - return (ret == (size_t)-1 ? 0 : ret); -} - -static size_t -io_uio_read(const struct io *io, void *ptr, const size_t offset, const size_t size) -{ - const size_t ret = io_uio_do(io, ptr, offset, size, process_vm_readv); - - if (ret == (size_t)-1) - warn("process_vm_readv(%u)", io->pid); - - return (ret == (size_t)-1 ? 0 : ret); -} - -bool -io_uio_init(struct io *io, const pid_t pid) -{ - *io = (struct io){ .pid = pid, .read = io_uio_read, .write = io_uio_write }; - return true; -} |