summaryrefslogtreecommitdiff
path: root/indra/test/llpipeutil.cpp
blob: 773a96768161d865a1845b63aa843b9b1168c4a7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
/** 
 * @file llpipeutil.cpp
 * @date 2006-05-18
 * @brief Utility pipe fittings for injecting and extracting strings
 *
 * Copyright (c) 2006-$CurrentYear$, Linden Research, Inc.
 * $License$
 */


#include "linden_common.h"
#include "llpipeutil.h"

#include <stdlib.h>
#include <sstream>

#include "llbufferstream.h"
#include "lldefs.h"
#include "llframetimer.h"
#include "llpumpio.h"
#include "llrand.h"
#include "lltimer.h"

F32 pump_loop(LLPumpIO* pump, F32 seconds)
{
	LLTimer timer;
	timer.setTimerExpirySec(seconds);
	while(!timer.hasExpired())
	{
		LLFrameTimer::updateFrameTime();			
		pump->pump();
		pump->callback();
	}
	return timer.getElapsedTimeF32();
}

//virtual 
LLIOPipe::EStatus LLPipeStringInjector::process_impl(
		const LLChannelDescriptors& channels,
		buffer_ptr_t& buffer,
		bool& eos,
		LLSD& context,
		LLPumpIO* pump)
{
	buffer->append(channels.out(), (U8*) mString.data(), mString.size());
	eos = true;
	return STATUS_DONE;
}


LLIOPipe::EStatus LLPipeStringExtractor::process_impl(
	const LLChannelDescriptors& channels,
    buffer_ptr_t& buffer,
    bool& eos,
    LLSD& context,
    LLPumpIO* pump)
{
    if(!eos) return STATUS_BREAK;
    if(!pump || !buffer) return STATUS_PRECONDITION_NOT_MET;

	LLBufferStream istr(channels, buffer.get());
	std::ostringstream ostr;
	while (istr.good())
	{
		char buf[1024];		/* Flawfinder: ignore */
		istr.read(buf, sizeof(buf));	/* Flawfinder: ignore */
		ostr.write(buf, istr.gcount());
	}
	mString = ostr.str();
	mDone = true;
	
	return STATUS_DONE;
}


// virtual
LLIOPipe::EStatus LLIOFuzz::process_impl(
	const LLChannelDescriptors& channels,
	buffer_ptr_t& buffer,
	bool& eos,
	LLSD& context,
	LLPumpIO* pump)
{
	while(mByteCount)
	{
		std::vector<U8> data;
		data.reserve(10000);
		int size = llmin(10000, mByteCount);
		std::generate_n(
			std::back_insert_iterator< std::vector<U8> >(data),
			size,
			rand);
		buffer->append(channels.out(), &data[0], size);
		mByteCount -= size;
	}
	return STATUS_OK;
}

struct random_ascii_generator
{
	random_ascii_generator() {}
	U8 operator()()
	{
		int rv = rand();
		rv %= (127 - 32);
		rv += 32;
		return rv;
	}
};

// virtual
LLIOPipe::EStatus LLIOASCIIFuzz::process_impl(
	const LLChannelDescriptors& channels,
	buffer_ptr_t& buffer,
	bool& eos,
	LLSD& context,
	LLPumpIO* pump)
{
	while(mByteCount)
	{
		std::vector<U8> data;
		data.reserve(10000);
		int size = llmin(10000, mByteCount);
		std::generate_n(
			std::back_insert_iterator< std::vector<U8> >(data),
			size,
			random_ascii_generator());
		buffer->append(channels.out(), &data[0], size);
		mByteCount -= size;
	}
	return STATUS_OK;
}

// virtual
LLIOPipe::EStatus LLIONull::process_impl(
	const LLChannelDescriptors& channels,
	buffer_ptr_t& buffer,
	bool& eos,
	LLSD& context,
	LLPumpIO* pump)
{
	return STATUS_OK;
}