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 
11 using namespace lldb_private;
12 
13 char *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 
37 Environment::Environment(const char *const *Env) {
38  if (!Env)
39  return;
40  while (*Env)
41  insert(*Env++);
42 }
43 
44 void Environment::insert(iterator first, iterator last) {
45  while (first != last) {
46  try_emplace(first->first(), first->second);
47  ++first;
48  }
49 }
lldb_private::Environment::Environment
Environment()
Definition: Environment.h:59
lldb_private::Value
Definition: Value.h:38
lldb_private::Environment::Envp::Envp
Envp(Envp &&RHS)=default
lldb_private::Environment::insert
std::pair< iterator, bool > insert(llvm::StringRef KeyEqValue)
Definition: Environment.h:71
lldb_private::Environment::Envp::Allocator
llvm::BumpPtrAllocator Allocator
Definition: Environment.h:37
lldb_private::Environment
Definition: Environment.h:18
Environment.h
lldb_private
A class that represents a running process on the host machine.
Definition: SBCommandInterpreterRunOptions.h:16
lldb_private::Environment::Envp::make_entry
char * make_entry(llvm::StringRef Key, llvm::StringRef Value)
Definition: Environment.cpp:13