2021-10-27 12:26:42 +00:00
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#include <Common/getMaxFileDescriptorCount.h>
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#include <Common/ShellCommand.h>
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#include <IO/WriteBufferFromString.h>
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#include <IO/copyData.h>
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#include <string>
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int getMaxFileDescriptorCount()
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{
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#if defined(__linux__) || defined(__APPLE__)
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using namespace DB;
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auto command = ShellCommand::execute("ulimit -n");
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WriteBufferFromOwnString out;
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copyData(command->out, out);
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2021-10-27 14:26:53 +00:00
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if (!out.str().empty())
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2021-10-27 12:26:42 +00:00
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{
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return std::stoi(out.str());
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}
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return -1;
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#else
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return -1;
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#endif
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}
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