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https://github.com/RGBCube/serenity
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Kernel: Make KBufferBuilder::append() & friends return KResult
This allows callers to react to a failed append (due to OOM.)
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b096e85777
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2065ced8f6
7 changed files with 63 additions and 42 deletions
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@ -336,7 +336,8 @@ private:
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ProcFSSelfProcessDirectory();
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virtual bool acquire_link(KBufferBuilder& builder) override
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{
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builder.appendff("{}", Process::current().pid().value());
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if (builder.appendff("{}", Process::current().pid().value()).is_error())
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return false;
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return true;
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}
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};
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@ -559,8 +560,10 @@ private:
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virtual bool output(KBufferBuilder& builder) override
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{
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InterruptDisabler disabler;
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for (char ch : ConsoleDevice::the().logbuffer())
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builder.append(ch);
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for (char ch : ConsoleDevice::the().logbuffer()) {
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if (builder.append(ch).is_error())
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return false;
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}
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return true;
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}
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};
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@ -664,7 +667,8 @@ private:
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ProcFSUptime();
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virtual bool output(KBufferBuilder& builder) override
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{
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builder.appendff("{}\n", TimeManagement::the().uptime_ms() / 1000);
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if (builder.appendff("{}\n", TimeManagement::the().uptime_ms() / 1000).is_error())
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return false;
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return true;
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}
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};
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@ -676,8 +680,10 @@ private:
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ProcFSCommandLine();
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virtual bool output(KBufferBuilder& builder) override
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{
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builder.append(kernel_command_line().string());
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builder.append('\n');
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if (builder.append(kernel_command_line().string()).is_error())
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return false;
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if (builder.append('\n').is_error())
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return false;
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return true;
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}
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};
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@ -739,7 +745,8 @@ private:
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{
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if (!Process::current().is_superuser())
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return false;
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builder.append(String::number(kernel_load_base));
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if (builder.append(String::number(kernel_load_base)).is_error())
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return false;
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return true;
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}
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};
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