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New feature POSIX message queues (MQ)

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This commit is contained in:
Gerhard Rieger 2023-09-30 19:32:14 +02:00
parent e1aadc577d
commit 7d6295114b
21 changed files with 876 additions and 14 deletions

19
xio.h
View file

@ -45,15 +45,17 @@ struct opt;
#define XIOREAD_STREAM 0x1000 /* read() (default) */
#define XIOREAD_RECV 0x2000 /* recvfrom() */
#define XIOREAD_PTY 0x4000 /* handle EIO */
#define XIOREAD_READLINE 0x5000 /* ... */
#define XIOREAD_OPENSSL 0x6000 /* SSL_read() */
#define XIOREAD_POSIXMQ 0x5000 /* POSIX MQ */
#define XIOREAD_READLINE 0x6000 /* ... */
#define XIOREAD_OPENSSL 0x7000 /* SSL_read() */
#define XIODATA_WRITEMASK 0x0f00 /* mask for basic r/w method */
#define XIOWRITE_STREAM 0x0100 /* write() (default) */
#define XIOWRITE_SENDTO 0x0200 /* sendto() */
#define XIOWRITE_PIPE 0x0300 /* write() to alternate (pipe) Fd */
#define XIOWRITE_2PIPE 0x0400 /* write() to alternate (2pipe) Fd */
#define XIOWRITE_READLINE 0x0500 /* check for prompt */
#define XIOWRITE_OPENSSL 0x0600 /* SSL_write() */
#define XIOWRITE_POSIXMQ 0x0500 /* POSIX MQ */
#define XIOWRITE_READLINE 0x0600 /* check for prompt */
#define XIOWRITE_OPENSSL 0x0700 /* SSL_write() */
/* modifiers to XIODATA_READ_RECV */
#define XIOREAD_RECV_CHECKPORT 0x0001 /* recv, check peer port */
#define XIOREAD_RECV_CHECKADDR 0x0002 /* recv, check peer address */
@ -74,6 +76,7 @@ struct opt;
#define XIODATA_RECV_SKIPIP (XIODATA_RECV|XIOREAD_RECV_SKIPIP)
#define XIODATA_PIPE (XIOREAD_STREAM|XIOWRITE_PIPE)
#define XIODATA_2PIPE (XIOREAD_STREAM|XIOWRITE_2PIPE)
#define XIODATA_POSIXMQ (XIOREAD_POSIXMQ|XIOWRITE_POSIXMQ)
#define XIODATA_PTY (XIOREAD_PTY|XIOWRITE_STREAM)
#define XIODATA_READLINE (XIOREAD_READLINE|XIOWRITE_STREAM)
#define XIODATA_OPENSSL (XIOREAD_OPENSSL|XIOWRITE_OPENSSL)
@ -169,7 +172,7 @@ typedef struct single {
size_t actbytes; /* so many bytes still to be read (when readbytes!=0)*/
xiolock_t lock; /* parameters of lockfile */
bool havelock; /* we are happy owner of the above lock */
int triggerfd; /* close this FD in child process to signal parent */
int triggerfd; /* close this FD in child process to notify parent */
bool cool_write; /* downlevel EPIPE, ECONNRESET to notice */
/* until here, keep consistent with bipipe.dual ! */
int argc; /* number of fields in argv */
@ -243,6 +246,12 @@ typedef struct single {
#endif /* WITH_UNIX */
} socket;
#endif /* _WITH_SOCKET */
#if WITH_POSIXMQ
struct {
const char *name;
unsigned int prio; /* POSIX message queue */
} posixmq;
#endif /* WITH_POSIXMQ */
struct {
int fdout; /* use fd for output if two pipes */
pid_t pid; /* child PID, with EXEC: */