17c79a9e23
Besides adapting the components to the use of base/log.h, the patch cleans up a few base headers, i.e., it removes unused includes from root/component.h, specifically base/heap.h and ram_session/ram_session.h. Hence, components that relied on the implicit inclusion of those headers have to manually include those headers now. While adjusting the log messages, I repeatedly stumbled over the problem that printing char * arguments is ambiguous. It is unclear whether to print the argument as pointer or null-terminated string. To overcome this problem, the patch introduces a new type 'Cstring' that allows the caller to express that the argument should be handled as null-terminated string. As a nice side effect, with this type in place, the optional len argument of the 'String' class could be removed. Instead of supplying a pair of (char const *, size_t), the constructor accepts a 'Cstring'. This, in turn, clears the way let the 'String' constructor use the new output mechanism to assemble a string from multiple arguments (and thereby getting rid of snprintf within Genode in the near future). To enforce the explicit resolution of the char * ambiguity, the 'char *' overload of the 'print' function is marked as deleted. Issue #1987
64 lines
1.6 KiB
C++
64 lines
1.6 KiB
C++
/*
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* \brief Pistachio-specific helper for printing thread IDs
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* \author Norman Feske
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* \date 2016-08-15
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*/
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/*
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* Copyright (C) 2008-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _CORE__INCLUDE__PRINT_L4_THREAD_ID_H_
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#define _CORE__INCLUDE__PRINT_L4_THREAD_ID_H_
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#include <base/output.h>
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namespace Pistachio {
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#include <l4/types.h>
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}
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namespace Genode { struct Formatted_tid; }
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struct Genode::Formatted_tid
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{
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Pistachio::L4_ThreadId_t tid;
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explicit Formatted_tid(Pistachio::L4_ThreadId_t tid) : tid(tid) { }
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void print(Output &out) const
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{
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using namespace Pistachio;
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using Genode::print;
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if (L4_IsLocalId(tid)) {
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unsigned char const local_id = tid.local.X.local_id;
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print(out, "THREAD (local) ",
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Hex(local_id, Hex::OMIT_PREFIX, Hex::PAD), " "
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"(raw ", Hex(tid.raw, Hex::OMIT_PREFIX, Hex::PAD), ")");
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} else if (L4_IsGlobalId(tid)) {
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unsigned char const global_id = tid.global.X.thread_no;
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print(out, "THREAD (global) ",
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Hex(global_id, Hex::OMIT_PREFIX, Hex::PAD), " "
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"(version ", Hex(tid.global.X.version, Hex::OMIT_PREFIX), ") ",
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"(raw ", Hex(tid.raw, Hex::OMIT_PREFIX, Hex::PAD), ")");
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} else {
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const char *name;
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if (tid == L4_nilthread) name = "nilthread";
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else if (tid == L4_anythread) name = "anythread";
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else name = "???";
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print(out, "THREAD (", name, ")");
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}
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}
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};
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#endif /* _CORE__INCLUDE__PRINT_L4_THREAD_ID_H_ */
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