diff -r 40a3b13ffc9d -r 9dfc861273e5 src/evfuse.c --- a/src/evfuse.c Tue Nov 18 02:06:52 2008 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,153 +0,0 @@ - -#include -#include -#include - -#include "evfuse.h" -#include "lib/log.h" - -struct evfuse { - // our mountpoint - char *mountpoint; - - // the /dev/fuse fd/channel that we get from fuse_mount - struct fuse_chan *chan; - - // the session that we use to process the fuse stuff - struct fuse_session *session; - - // the event that we use to receive requests - struct event *ev; - - // what our receive-message length is - size_t recv_size; - - // the buffer that we use to receive events - char *recv_buf; -}; - -// prototypes -void evfuse_close (struct evfuse *ctx); - -static void _evfuse_ev_read (evutil_socket_t fd, short what, void *arg) { - struct evfuse *ctx = arg; - struct fuse_chan *ch = ctx->chan; - int res; - - // loop until we complete a recv - do { - // a new fuse_req is available - res = fuse_chan_recv(&ch, ctx->recv_buf, ctx->recv_size); - } while (res == -EINTR); - - if (res == 0) - ERROR("fuse_chan_recv gave EOF"); - - if (res < 0 && res != -EAGAIN) - ERROR("fuse_chan_recv failed: %s", strerror(-res)); - - if (res > 0) { - DEBUG("got %d bytes from /dev/fuse", res); - - // received a fuse_req, so process it - fuse_session_process(ctx->session, ctx->recv_buf, res, ch); - } - - // reschedule - if (event_add(ctx->ev, NULL)) - PERROR("event_add"); - - // ok, wait for the next event - return; - -error: - // close, but don't free - evfuse_close(ctx); -} - -struct evfuse *evfuse_new (struct event_base *evbase, struct fuse_args *args, struct fuse_lowlevel_ops *llops, void *cb_data) { - struct evfuse *ctx = NULL; - int multithreaded, foreground; - - // allocate our context - if ((ctx = calloc(1, sizeof(*ctx))) == NULL) - ERROR("calloc"); - - // parse the commandline for the mountpoint - if (fuse_parse_cmdline(args, &ctx->mountpoint, &multithreaded, &foreground) == -1) - ERROR("fuse_parse_cmdline"); - - // mount it - if ((ctx->chan = fuse_mount(ctx->mountpoint, args)) == NULL) - PERROR("fuse_mount_common"); - - // the receive buffer stufff - ctx->recv_size = fuse_chan_bufsize(ctx->chan); - - // allocate the recv buffer - if ((ctx->recv_buf = malloc(ctx->recv_size)) == NULL) - ERROR("malloc"); - - // allocate a low-level session - if ((ctx->session = fuse_lowlevel_new(args, llops, sizeof(*llops), cb_data)) == NULL) - PERROR("fuse_lowlevel_new"); - - // add the channel to the session - // this isn't strictly necessary, but let's do it anyways - fuse_session_add_chan(ctx->session, ctx->chan); - - // now, we can start listening for events on the channel - if ((ctx->ev = event_new(evbase, fuse_chan_fd(ctx->chan), EV_READ, &_evfuse_ev_read, ctx)) == NULL) - ERROR("event_new"); - - if (event_add(ctx->ev, NULL)) - PERROR("event_add"); - - // and then we wait - return ctx; - -error: - evfuse_free(ctx); - - return NULL; -} - -void evfuse_close (struct evfuse *ctx) { - if (ctx->ev) { - // remove our event - if (event_del(ctx->ev)) - PWARNING("event_del"); - - ctx->ev = NULL; - } - - if (ctx->session) { - // remove the chan - fuse_session_remove_chan(ctx->chan); - - // destroy the session - fuse_session_destroy(ctx->session); - - ctx->session = NULL; - } - - if (ctx->chan) { - // unmount - fuse_unmount(ctx->mountpoint, ctx->chan); - - ctx->chan = NULL; - } - - // free - free(ctx->recv_buf); ctx->recv_buf = NULL; - free(ctx->mountpoint); ctx->mountpoint = NULL; -} - -void evfuse_free (struct evfuse *ctx) { - if (ctx) { - evfuse_close(ctx); - - free(ctx); - } -} -