LLDB mainline
Environment.cpp
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1//===-- Environment.cpp ---------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
10
11using namespace lldb_private;
12
13char *Environment::Envp::make_entry(llvm::StringRef Key,
14 llvm::StringRef Value) {
15 const size_t size = Key.size() + 1 /*=*/ + Value.size() + 1 /*\0*/;
16 char *Result = static_cast<char *>(
17 Allocator.Allocate(sizeof(char) * size, alignof(char)));
18 char *Next = Result;
19
20 Next = std::copy(Key.begin(), Key.end(), Next);
21 *Next++ = '=';
22 Next = std::copy(Value.begin(), Value.end(), Next);
23 *Next++ = '\0';
24
25 return Result;
26}
27
29 Data = static_cast<char **>(
30 Allocator.Allocate(sizeof(char *) * (Env.size() + 1), alignof(char *)));
31 char **Next = Data;
32 for (const auto &KV : Env)
33 *Next++ = make_entry(KV.first(), KV.second);
34 *Next++ = nullptr;
35}
36
37Environment::Environment(const char *const *Env) {
38 if (!Env)
39 return;
40 while (*Env)
41 insert(*Env++);
42}
43
44void Environment::insert(iterator first, iterator last) {
45 while (first != last) {
46 try_emplace(first->first(), first->second);
47 ++first;
48 }
49}
char * make_entry(llvm::StringRef Key, llvm::StringRef Value)
Definition: Environment.cpp:13
llvm::BumpPtrAllocator Allocator
Definition: Environment.h:37
std::pair< iterator, bool > insert(llvm::StringRef KeyEqValue)
Definition: Environment.h:71
A class that represents a running process on the host machine.