buffer.cpp
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34 
35 #include <stdlib.h>
36 #include <assert.h>
37 #include <utility>
38 #include <limits>
39 
40 #include "rosbag/buffer.h"
41 
42 //#include <ros/ros.h>
43 
44 namespace rosbag {
45 
46 Buffer::Buffer() : buffer_(NULL), capacity_(0), size_(0) { }
47 
49  free(buffer_);
50 }
51 
52 uint8_t* Buffer::getData() { return buffer_; }
53 uint32_t Buffer::getCapacity() const { return capacity_; }
54 uint32_t Buffer::getSize() const { return size_; }
55 
56 void Buffer::setSize(uint32_t size) {
57  size_ = size;
58  ensureCapacity(size);
59 }
60 
61 void Buffer::ensureCapacity(uint32_t capacity) {
62  if (capacity <= capacity_)
63  return;
64 
65  if (capacity_ == 0)
66  capacity_ = capacity;
67  else {
68  while (capacity_ < capacity)
69  {
70  if (static_cast<uint64_t>(capacity) * 2 > std::numeric_limits<uint32_t>::max())
71  capacity_ = std::numeric_limits<uint32_t>::max();
72  else
73  capacity_ *= 2;
74  }
75  }
76 
77  buffer_ = (uint8_t*) realloc(buffer_, capacity_);
78  assert(buffer_);
79 }
80 
81 void Buffer::swap(Buffer& other) {
82  using std::swap;
83  swap(buffer_, other.buffer_);
84  swap(capacity_, other.capacity_);
85  swap(size_, other.size_);
86 }
87 
88 } // namespace rosbag
uint32_t capacity_
Definition: buffer.h:63
uint8_t * getData()
Definition: buffer.cpp:52
void swap(Bag &a, Bag &b)
Definition: bag.h:674
uint8_t * buffer_
Definition: buffer.h:62
uint32_t size_
Definition: buffer.h:64
void swap(Buffer &other)
Definition: buffer.cpp:81
uint32_t getCapacity() const
Definition: buffer.cpp:53
uint32_t getSize() const
Definition: buffer.cpp:54
void setSize(uint32_t size)
Definition: buffer.cpp:56
void ensureCapacity(uint32_t capacity)
Definition: buffer.cpp:61


rosbag_storage
Author(s): Dirk Thomas
autogenerated on Mon Feb 28 2022 23:33:55