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77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
#ifndef EPOLL_SHIM_CTX_H_
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#define EPOLL_SHIM_CTX_H_
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#include "fix.h"
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#include <sys/tree.h>
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#include <unistd.h>
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#include "epollfd_ctx.h"
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#include "eventfd_ctx.h"
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#include "signalfd_ctx.h"
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#include "timerfd_ctx.h"
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struct fd_context_map_node_;
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typedef struct fd_context_map_node_ FDContextMapNode;
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typedef errno_t (*fd_context_read_fun)(FDContextMapNode *node, /**/
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void *buf, size_t nbytes, size_t *bytes_transferred);
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typedef errno_t (*fd_context_write_fun)(FDContextMapNode *node, /**/
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const void *buf, size_t nbytes, size_t *bytes_transferred);
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typedef errno_t (*fd_context_close_fun)(FDContextMapNode *node);
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typedef struct {
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fd_context_read_fun read_fun;
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fd_context_write_fun write_fun;
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fd_context_close_fun close_fun;
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} FDContextVTable;
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errno_t fd_context_default_read(FDContextMapNode *node, /**/
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void *buf, size_t nbytes, size_t *bytes_transferred);
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errno_t fd_context_default_write(FDContextMapNode *node, /**/
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void const *buf, size_t nbytes, size_t *bytes_transferred);
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struct fd_context_map_node_ {
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RB_ENTRY(fd_context_map_node_) entry;
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int fd;
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int flags;
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union {
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EpollFDCtx epollfd;
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EventFDCtx eventfd;
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TimerFDCtx timerfd;
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SignalFDCtx signalfd;
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} ctx;
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FDContextVTable const *vtable;
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};
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errno_t fd_context_map_node_destroy(FDContextMapNode *node);
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/**/
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typedef RB_HEAD(fd_context_map_, fd_context_map_node_) FDContextMap;
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typedef struct {
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FDContextMap fd_context_map;
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pthread_mutex_t mutex;
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} EpollShimCtx;
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extern EpollShimCtx epoll_shim_ctx;
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FDContextMapNode *epoll_shim_ctx_create_node(EpollShimCtx *epoll_shim_ctx,
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errno_t *ec);
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FDContextMapNode *epoll_shim_ctx_find_node(EpollShimCtx *epoll_shim_ctx,
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int fd);
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FDContextMapNode *epoll_shim_ctx_remove_node(EpollShimCtx *epoll_shim_ctx,
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int fd);
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void epoll_shim_ctx_remove_node_explicit(EpollShimCtx *epoll_shim_ctx,
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FDContextMapNode *node);
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/**/
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int epoll_shim_close(int fd);
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ssize_t epoll_shim_read(int fd, void *buf, size_t nbytes);
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ssize_t epoll_shim_write(int fd, void const *buf, size_t nbytes);
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#endif
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