diff options
Diffstat (limited to 'lib/erl_interface/src/misc/ei_portio.h')
| -rw-r--r-- | lib/erl_interface/src/misc/ei_portio.h | 95 |
1 files changed, 84 insertions, 11 deletions
diff --git a/lib/erl_interface/src/misc/ei_portio.h b/lib/erl_interface/src/misc/ei_portio.h index bded811a35..a84b5ca09c 100644 --- a/lib/erl_interface/src/misc/ei_portio.h +++ b/lib/erl_interface/src/misc/ei_portio.h @@ -21,21 +21,94 @@ */ #ifndef _EI_PORTIO_H #define _EI_PORTIO_H -#if !defined(__WIN32__) && !defined(VXWORKS) -#ifdef HAVE_WRITEV + +#undef EI_HAVE_STRUCT_IOVEC__ +#if !defined(__WIN32__) && !defined(VXWORKS) && defined(HAVE_SYS_UIO_H) /* Declaration of struct iovec *iov should be visible in this scope. */ -#include <sys/uio.h> +# include <sys/uio.h> +# define EI_HAVE_STRUCT_IOVEC__ #endif + +/* + * Internal API. Should not be used outside of the erl_interface application... + */ + +int ei_socket_ctx__(ei_socket_callbacks *cbs, void **ctx, void *setup); +int ei_close_ctx__(ei_socket_callbacks *cbs, void *ctx); +int ei_listen_ctx__(ei_socket_callbacks *cbs, void *ctx, void *adr, int *len, int backlog); +int ei_accept_ctx_t__(ei_socket_callbacks *cbs, void **ctx, void *addr, int *len, unsigned ms); +int ei_connect_ctx_t__(ei_socket_callbacks *cbs, void *ctx, void *addr, int len, unsigned ms); +int ei_read_fill_ctx__(ei_socket_callbacks *cbs, void *ctx, char* buf, ssize_t *len); +int ei_write_fill_ctx__(ei_socket_callbacks *cbs, void *ctx, const char *buf, ssize_t *len); +int ei_read_fill_ctx_t__(ei_socket_callbacks *cbs, void *ctx, char* buf, ssize_t *len, unsigned ms); +int ei_write_fill_ctx_t__(ei_socket_callbacks *cbs, void *ctx, const char *buf, ssize_t *len, unsigned ms); +#if defined(EI_HAVE_STRUCT_IOVEC__) +int ei_writev_fill_ctx_t__(ei_socket_callbacks *cbs, void *ctx, const struct iovec *iov, int iovcnt, ssize_t *len, unsigned ms); +int ei_socket_callbacks_have_writev__(ei_socket_callbacks *cbs); #endif -int ei_accept_t(int fd, void *addr, void *addrlen, unsigned ms); -int ei_connect_t(int fd, void *sinp, int sin_siz, unsigned ms); -int ei_read_fill(int fd, char* buf, int len); -int ei_write_fill(int fd, const char *buf, int len); -int ei_read_fill_t(int fd, char* buf, int len, unsigned ms); -int ei_write_fill_t(int fd, const char *buf, int len, unsigned ms); -#ifdef HAVE_WRITEV -int ei_writev_fill_t(int fd, const struct iovec *iov, int iovcnt, unsigned ms); +ei_socket_callbacks ei_default_socket_callbacks; + +#define EI_FD_AS_CTX__(FD) \ + ((void *) (long) (FD)) + +#define EI_DFLT_CTX_TO_FD__(CTX, FD) \ + ((int) (long) (CTX) < 0 \ + ? EBADF \ + : (*(FD) = (int) (long) (CTX), 0)) + +#define EI_GET_FD__(CBS, CTX, FD) \ + ((CBS) == &ei_default_socket_callbacks \ + ? EI_DFLT_CTX_TO_FD__((CTX), FD) \ + : (CBS)->get_fd((CTX), (FD))) + +extern int ei_plugin_socket_impl__; + +#if !defined(_REENTRANT) + +#define EI_HAVE_PLUGIN_SOCKET_IMPL__ \ + ei_plugin_socket_impl__ +#define EI_SET_HAVE_PLUGIN_SOCKET_IMPL__ \ + ei_plugin_socket_impl__ = 1 + +#elif ((ETHR_HAVE___atomic_load_n & SIZEOF_INT) \ + && (ETHR_HAVE___atomic_store_n & SIZEOF_INT)) + +#define EI_HAVE_PLUGIN_SOCKET_IMPL__ \ + __atomic_load_n(&ei_plugin_socket_impl__, __ATOMIC_ACQUIRE) +#define EI_SET_HAVE_PLUGIN_SOCKET_IMPL__ \ + __atomic_store_n(&ei_plugin_socket_impl__, 1, __ATOMIC_RELEASE) + +#else + +/* No gcc atomics; always lookup using ei_get_cbs_ctx()... */ +#define EI_HAVE_PLUGIN_SOCKET_IMPL__ 0 +#define EI_SET_HAVE_PLUGIN_SOCKET_IMPL__ (void) 0 + +#endif + +#define EI_GET_CBS_CTX__(CBS, CTX, FD) \ + (EI_HAVE_PLUGIN_SOCKET_IMPL__ \ + ? ei_get_cbs_ctx__((CBS), (CTX), (FD)) \ + : ((FD) < 0 \ + ? EBADF \ + : (*(CBS) = &ei_default_socket_callbacks, \ + *(CTX) = EI_FD_AS_CTX__((FD)), \ + 0))) +/* + * The following uses our own TCP/IPv4 socket implementation... + */ +int ei_socket__(int *fd); +int ei_close__(int fd); +int ei_listen__(int fd, void *adr, int *len, int backlog); +int ei_accept_t__(int *fd, void *addr, int *len, unsigned ms); +int ei_connect_t__(int fd, void *addr, int len, unsigned ms); +int ei_read_fill__(int fd, char* buf, ssize_t *len); +int ei_write_fill__(int fd, const char *buf, ssize_t *len); +int ei_read_fill_t__(int fd, char* buf, ssize_t *len, unsigned ms); +int ei_write_fill_t__(int fd, const char *buf, ssize_t *len, unsigned ms); +#if defined(EI_HAVE_STRUCT_IOVEC__) && defined(HAVE_WRITEV) +int ei_writev_fill_t__(int fd, const struct iovec *iov, int iovcnt, ssize_t *len, unsigned ms); #endif #endif /* _EI_PORTIO_H */ |