src/libs/compat/freebsd_network/compat_cpp.cpp

   1 /*
   2  * Copyright 2010, Ingo Weinhold, ingo_weinhold@gmx.de.
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6
   7 #include "compat_cpp.h"
   8
   9 #include <stdio.h>
  10 #include <string.h>
  11
  12 #include <kernel/vm/vm.h>
  13
  14
  15 void*
  16 _kernel_contigmalloc_cpp(const char* file, int line, size_t size,
  17         phys_addr_t low, phys_addr_t high, phys_size_t alignment,
  18         phys_size_t boundary, bool zero, bool dontWait)
  19 {
  20         size = ROUNDUP(size, B_PAGE_SIZE);
  21
  22         uint32 creationFlags = (zero ? 0 : CREATE_AREA_DONT_CLEAR)
  23                 | (dontWait ? CREATE_AREA_DONT_WAIT : 0);
  24
  25         char name[B_OS_NAME_LENGTH];
  26         const char* baseName = strrchr(file, '/');
  27         baseName = baseName != NULL ? baseName + 1 : file;
  28         snprintf(name, sizeof(name), "contig:%s:%d", baseName, line);
  29
  30         virtual_address_restrictions virtualRestrictions = {};
  31
  32         physical_address_restrictions physicalRestrictions = {};
  33         physicalRestrictions.low_address = low;
  34         physicalRestrictions.high_address = high;
  35         physicalRestrictions.alignment = alignment;
  36         physicalRestrictions.boundary = boundary;
  37
  38         void* address;
  39         area_id area = create_area_etc(B_SYSTEM_TEAM, name, size, B_CONTIGUOUS,
  40                 B_KERNEL_READ_AREA | B_KERNEL_WRITE_AREA, creationFlags, 0,
  41                 &virtualRestrictions, &physicalRestrictions, &address);
  42         if (area < 0)
  43                 return NULL;
  44
  45         return address;
  46 }