diff options
Diffstat (limited to 'lib/libc/gen/msgrcv.3')
| -rw-r--r-- | lib/libc/gen/msgrcv.3 | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/lib/libc/gen/msgrcv.3 b/lib/libc/gen/msgrcv.3 index 2985761..d6401b6 100644 --- a/lib/libc/gen/msgrcv.3 +++ b/lib/libc/gen/msgrcv.3 @@ -69,22 +69,30 @@ The value of has one of the following meanings: .Bl -bullet .It +The .Fa msgtyp +argument is greater than 0. The first message of type .Fa msgtyp will be received. .It +The .Fa msgtyp +argument is equal to 0. The first message on the queue will be received. .It +The .Fa msgtyp +argument is less than 0. The first message of the lowest message type that is less than or equal to the absolute value of .Fa msgtyp will be received. .El .Pp +The .Fa msgsz +argument specifies the maximum length of the requested message. If the received message has a length greater than @@ -165,14 +173,18 @@ function will fail if: .Bl -tag -width Er .It Bq Er EINVAL +The .Fa msqid +argument is not a valid message queue identifier. .Pp The message queue was removed while .Fn msgrcv was waiting for a message of the requested type to become available on it. .Pp +The .Fa msgsz +argument is less than 0. .It Bq Er E2BIG A matching message was received, but its size was greater than @@ -184,7 +196,9 @@ flag was not set in .It Bq Er EACCES The calling process does not have read access to the message queue. .It Bq Er EFAULT +The .Fa msgp +argument points to an invalid address. .It Bq Er EINTR The system call was interrupted by the delivery of a signal. |
