msgpullup(9f) [sunos man page]
msgpullup(9F) Kernel Functions for Drivers msgpullup(9F) NAME
msgpullup - concatenate bytes in a message SYNOPSIS
#include <sys/stream.h> mblk_t *msgpullup(mblk_t *mp, ssize_t len); INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI). PARAMETERS
mp Pointer to the message whose blocks are to be concatenated. len Number of bytes to concatenate. DESCRIPTION
msgpullup() concatenates and aligns the first len data bytes of the message pointed to by mp, copying the data into a new message. Any remaining bytes in the remaining message blocks will be copied and linked onto the new message. The original message is unaltered. If len equals -1, all data are concatenated. If len bytes of the same message type cannot be found, msgpullup() fails and returns NULL. RETURN VALUES
msgpullup returns the following values: Non-null Successful completion. A pointer to the new message is returned. NULL An error occurred. CONTEXT
msgpullup() can be called from user or interrupt context. SEE ALSO
srv(9E), allocb(9F), pullupmsg(9F), msgb(9S) Writing Device Drivers STREAMS Programming Guide NOTES
msgpullup() is a DKI-compliant replacement for the older pullupmsg(9F) routine. Users are strongly encouraged to use msgpullup() instead of pullupmsg(9F). SunOS 5.10 11 Nov 1996 msgpullup(9F)
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msgpullup(9F) Kernel Functions for Drivers msgpullup(9F) NAME
msgpullup - concatenate bytes in a message SYNOPSIS
#include <sys/stream.h> mblk_t *msgpullup(mblk_t *mp, ssize_t len); INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI). PARAMETERS
mp Pointer to the message whose blocks are to be concatenated. len Number of bytes to concatenate. DESCRIPTION
msgpullup() concatenates and aligns the first len data bytes of the message pointed to by mp, copying the data into a new message. Any remaining bytes in the remaining message blocks will be copied and linked onto the new message. The original message is unaltered. If len equals -1, all data are concatenated. If len bytes of the same message type cannot be found, msgpullup() fails and returns NULL. RETURN VALUES
msgpullup returns the following values: Non-null Successful completion. A pointer to the new message is returned. NULL An error occurred. CONTEXT
msgpullup() can be called from user or interrupt context. SEE ALSO
srv(9E), allocb(9F), pullupmsg(9F), msgb(9S) Writing Device Drivers STREAMS Programming Guide NOTES
msgpullup() is a DKI-compliant replacement for the older pullupmsg(9F) routine. Users are strongly encouraged to use msgpullup() instead of pullupmsg(9F). SunOS 5.10 11 Nov 1996 msgpullup(9F)