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bol-van
2024-10-28 09:32:24 +03:00
commit 2aaa2f7cf3
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76
tpws/epoll-shim/src/epoll_shim_ctx.h Normal file
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#ifndef EPOLL_SHIM_CTX_H_
#define EPOLL_SHIM_CTX_H_
#include "fix.h"
#include <sys/tree.h>
#include <unistd.h>
#include "epollfd_ctx.h"
#include "eventfd_ctx.h"
#include "signalfd_ctx.h"
#include "timerfd_ctx.h"
struct fd_context_map_node_;
typedef struct fd_context_map_node_ FDContextMapNode;
typedef errno_t (*fd_context_read_fun)(FDContextMapNode *node, /**/
void *buf, size_t nbytes, size_t *bytes_transferred);
typedef errno_t (*fd_context_write_fun)(FDContextMapNode *node, /**/
const void *buf, size_t nbytes, size_t *bytes_transferred);
typedef errno_t (*fd_context_close_fun)(FDContextMapNode *node);
typedef struct {
fd_context_read_fun read_fun;
fd_context_write_fun write_fun;
fd_context_close_fun close_fun;
} FDContextVTable;
errno_t fd_context_default_read(FDContextMapNode *node, /**/
void *buf, size_t nbytes, size_t *bytes_transferred);
errno_t fd_context_default_write(FDContextMapNode *node, /**/
void const *buf, size_t nbytes, size_t *bytes_transferred);
struct fd_context_map_node_ {
RB_ENTRY(fd_context_map_node_) entry;
int fd;
int flags;
union {
EpollFDCtx epollfd;
EventFDCtx eventfd;
TimerFDCtx timerfd;
SignalFDCtx signalfd;
} ctx;
FDContextVTable const *vtable;
};
errno_t fd_context_map_node_destroy(FDContextMapNode *node);
/**/
typedef RB_HEAD(fd_context_map_, fd_context_map_node_) FDContextMap;
typedef struct {
FDContextMap fd_context_map;
pthread_mutex_t mutex;
} EpollShimCtx;
extern EpollShimCtx epoll_shim_ctx;
FDContextMapNode *epoll_shim_ctx_create_node(EpollShimCtx *epoll_shim_ctx,
errno_t *ec);
FDContextMapNode *epoll_shim_ctx_find_node(EpollShimCtx *epoll_shim_ctx,
int fd);
FDContextMapNode *epoll_shim_ctx_remove_node(EpollShimCtx *epoll_shim_ctx,
int fd);
void epoll_shim_ctx_remove_node_explicit(EpollShimCtx *epoll_shim_ctx,
FDContextMapNode *node);
/**/
int epoll_shim_close(int fd);
ssize_t epoll_shim_read(int fd, void *buf, size_t nbytes);
ssize_t epoll_shim_write(int fd, void const *buf, size_t nbytes);
#endif