diff options
| author | Thomas Bushnell <thomas@gnu.org> | 1999-07-11 05:30:36 +0000 |
|---|---|---|
| committer | Thomas Bushnell <thomas@gnu.org> | 1999-07-11 05:30:36 +0000 |
| commit | 4e6a0ccbb531ca4bb6cdbd37152f20dbe622e389 (patch) | |
| tree | 23904142536fadd4153d519773cc61c624c968f8 | |
| parent | 0f3b1a1fd2f4cdb2ad800c92858ffe64c6d3e294 (diff) | |
1999-07-09 Thomas Bushnell, BSG <tb@mit.edu>
* pq.c (packet_realloc): Use mmap instead of vm_allocate.
(packet_read_ports): Likewise.
(packet_read): Likewise.
| -rw-r--r-- | libpipe/ChangeLog | 6 | ||||
| -rw-r--r-- | libpipe/pq.c | 15 |
2 files changed, 14 insertions, 7 deletions
diff --git a/libpipe/ChangeLog b/libpipe/ChangeLog index d7de9594..e0dc3ea1 100644 --- a/libpipe/ChangeLog +++ b/libpipe/ChangeLog @@ -2,6 +2,12 @@ * pq.c: Add #include <sys/mman.h> for munmap decl. +1999-07-09 Thomas Bushnell, BSG <tb@mit.edu> + + * pq.c (packet_realloc): Use mmap instead of vm_allocate. + (packet_read_ports): Likewise. + (packet_read): Likewise. + 1999-07-03 Thomas Bushnell, BSG <tb@mit.edu> * pq.c (free_packets): Use munmap instead of vm_deallocate. diff --git a/libpipe/pq.c b/libpipe/pq.c index b930064b..07196000 100644 --- a/libpipe/pq.c +++ b/libpipe/pq.c @@ -226,8 +226,10 @@ packet_realloc (struct packet *packet, size_t new_len) /* Make a new buffer. */ if (vm_alloc) - err = - vm_allocate (mach_task_self (), (vm_address_t *)&new_buf, new_len, 1); + { + new_buf = mmap (0, new_len, PROT_READ|PROT_WRITE, MAP_ANON, 0, 0); + err = (new_buf == (char *) -1) ? errno : 0; + } else { new_buf = malloc (new_len); @@ -313,10 +315,9 @@ packet_read_ports (struct packet *packet, int length = packet->num_ports * sizeof (mach_port_t *); if (*num_ports < packet->num_ports) { - error_t err = - vm_allocate (mach_task_self (), (vm_address_t *)ports, length, 1); - if (err) - return err; + *ports = mmap (0, length, PROT_READ|PROT_WRITE, MAP_ANON, 0, 0); + if (*ports == (mach_port_t *) -1) + return errno; } *num_ports = packet->num_ports; bcopy (packet->ports, *ports, length); @@ -403,7 +404,7 @@ packet_read (struct packet *packet, /* Just copy the data the old fashioned way.... */ { if (*data_len < amount) - vm_allocate (mach_task_self (), (vm_address_t *)data, amount, 1); + *data = mmap (0, amount, PROT_READ|PROT_WRITE, MAP_ANON, 0, 0); bcopy (start, *data, amount); start += amount; |